Hoja de repaso: Mastering Subject-Verb Agreement

📋 Course Outline

1. Subject-Verb Agreement Rules
2. Poetry Lines Identification
3. Correct Verb-Subject Matching
4. Singular vs. Plural Verbs
5. Sentence Agreement Practice
6. Complex Subject Constructions
7. Special Cases in Agreement
8. Quantifiers and Agreement
9. Collective Nouns Usage
10. Indefinite Pronouns Agreement
11. Number and Quantity Expressions

📖 1. Subject-Verb Agreement Rules

🔑 Key Concepts & Definitions

• Basic rules of subject-verb agreement: The verb must agree in number with its subject; singular subjects take singular verbs, and plural subjects take plural verbs. (see source content)

• Agreement with compound subjects joined by 'and': When two or more subjects are joined by 'and', the verb is generally plural. (see source content)

• Agreement with compound subjects joined by 'or': When subjects are joined by 'or', the verb agrees with the subject closest to the verb; if one subject is singular and the other plural, the verb matches the closest subject. (see source content)

• Agreement with subjects joined by 'neither...nor': The verb agrees with the subject that is nearer to it; if both subjects are singular, the verb is singular. (see source content)

• Agreement with subjects joined by 'either...or': Similar to 'or', the verb agrees with the subject closest to it; if one is singular and the other plural, the verb matches the closest subject. (see source content)

• Verb agreement with coordinated subjects of different numbers: When a compound subject includes both singular and plural nouns, the verb typically agrees with the nearer subject, following the 'closest to the verb' rule. (see source content)

📝 Essential Points

• The fundamental rule states that a singular subject takes a singular verb, and a plural subject takes a plural verb. For example, "The cat runs" vs. "The cats run" (see source content).

• When subjects are joined by 'and', they are considered plural, requiring a plural verb, e.g., "The teacher and the student are present" (see source content).

• With 'or' and 'nor', the verb agrees with the subject closest to the verb, which can be singular or plural, e.g., "Neither the manager nor the employees are available" (see source content).

• Subjects joined by 'neither...nor' and 'either...or' follow the same proximity rule, with agreement based on the nearer subject (see source content).

• When a compound subject includes both singular and plural nouns, the verb agrees with the nearer subject, often determined by proximity, e.g., "The book or the magazines are on the table" (see source content).

💡 Key Takeaway

Subject-verb agreement rules ensure that the verb correctly reflects the number of the subject, especially in compound and coordinated structures, maintaining grammatical consistency and clarity in sentences.

📖 2. Poetry Lines Identification

🔑 Key Concepts & Definitions

Identification of poem lines from specific poets
The ability to recognize and attribute a particular line or excerpt to the poet who authored it. This involves familiarity with the stylistic features, themes, and distinctive language used by poets to accurately assign lines to their creators.

Recognition of poem titles associated with given lines
The skill to match a specific line or excerpt with the correct poem title. This requires knowledge of various poems' content, themes, and opening or notable lines, enabling students to connect lines to their respective titles.

Attribution of poetic lines to correct authors
The process of correctly assigning a line or excerpt to the poet who wrote it, based on stylistic analysis, thematic clues, and contextual understanding. Accurate attribution is essential for literary analysis and understanding poetic styles.

📝 Essential Points

• Recognizing lines from specific poets involves familiarity with their unique stylistic features and thematic tendencies.
• Correctly matching lines to poem titles requires knowledge of notable lines and opening verses of poems.
• Accurate attribution of lines to authors depends on understanding poetic diction, tone, and recurring motifs associated with each poet.
• These skills are tested through identification questions, where students must select the poet or poem title associated with given lines, as exemplified in the quiz questions.
• For example, the line "Your own divided face in the pair of glasses... Is all the countryside you get to see" is from 'The Old Playhouse' by Kamala Das (see question 2).
• Recognizing the correct poet or poem title enhances comprehension and appreciation of poetic works, as well as literary analysis accuracy.

💡 Key Takeaway

Mastering the identification of poem lines, recognition of poem titles, and attribution of lines to the correct authors requires familiarity with poets’ stylistic features and thematic signatures, enabling precise literary recognition and analysis.

📖 3. Correct Verb-Subject Matching

🔑 Key Concepts & Definitions

• Correct matching of verb forms to subjects: The process of selecting the appropriate verb form that agrees in number and person with its subject within a sentence, ensuring grammatical correctness.
• Distinguishing correct and incorrect subject-verb concord in example sentences: The ability to identify whether the verb correctly corresponds to its subject in number and person, as demonstrated in various sentence structures.
• Choosing correct verb forms in complex sentences: Selecting the proper verb form when the sentence contains multiple subjects, intervening phrases, or modifiers, which may obscure the agreement rules (see also section 6).

📝 Essential Points

• Subject-verb agreement depends on whether the subject is singular or plural, and the verb must reflect this (e.g., "He runs" vs. "They run").
• Certain expressions and phrases can complicate agreement, such as "neither...nor," "either...or," or when the subject is a collective noun or indefinite pronoun (see section 10).
• In complex sentences, the verb must agree with the main subject, even if other words or phrases are inserted between the subject and verb (see section 6).
• Recognizing incorrect agreement, such as "Neither of the boys know" or "The committee debate," is crucial for grammatical accuracy.
• When multiple subjects are joined by "and," the verb is usually plural; with "or" or "nor," the verb agrees with the nearer subject.
• Special attention is needed for indefinite pronouns like "everyone," "each," "neither," which are singular and take singular verbs (see section 10).

💡 Key Takeaway

Mastery of subject-verb matching involves understanding the number and person of the subject, recognizing complex sentence structures, and applying agreement rules accurately to ensure grammatical correctness in diverse contexts.

📖 4. Singular vs. Plural Verbs

🔑 Key Concepts & Definitions

• Difference between singular and plural verbs: Refers to the grammatical distinction where singular subjects take singular verb forms, and plural subjects take plural verb forms. For example, "He runs" (singular) vs. "They run" (plural).

• Verb forms used with singular subjects: The base verb plus an -s or -es ending in the present tense (e.g., "she walks," "the dog barks"). This form is used when the subject is singular, including third-person singular nouns and pronouns.

• Verb forms used with plural subjects: The base form of the verb without any -s or -es ending (e.g., "they walk," "the dogs bark"). This form is used with subjects that are plural, including first- and second-person pronouns and plural nouns.

• Agreement rules for singular vs. plural nouns: Singular nouns require singular verb forms, while plural nouns require plural verb forms. For example, "The book is on the table" (singular) vs. "The books are on the table" (plural). Special attention is needed with collective nouns, indefinite pronouns, and expressions of quantity, which may vary depending on context.

📝 Essential Points

• The core rule is that the verb must agree with the subject in number: singular subjects take singular verbs, and plural subjects take plural verbs. This is fundamental to subject-verb agreement (see section 1).

• Verb forms used with singular subjects: In the present tense, third-person singular subjects (he, she, it, singular nouns) typically require the verb to end with -s or -es, as in "He runs," "The cat catches mice." The exception is with auxiliary verbs and modal verbs, which do not change form.

• Verb forms used with plural subjects: Plural subjects (we, they, plural nouns) use the base form of the verb, such as "They run," "The students study."

• Agreement rules for singular vs. plural nouns: Certain nouns like "mathematics," "news," or "physics" are singular in form but may appear plural; however, they take singular verbs ("Mathematics is interesting"). Collective nouns (e.g., "team," "committee") can be singular or plural depending on whether the group is acting as a unit or as individuals (see section 9).

• The distinction is crucial in complex sentences, with indefinite pronouns, and expressions of quantity, where the verb agreement depends on whether the noun is considered singular or plural in context.

💡 Key Takeaway

Correct subject-verb agreement requires matching the verb form to the number of the subject, with singular subjects paired with singular verb forms and plural subjects with plural verb forms, ensuring grammatical accuracy and clarity.

📖 5. Sentence Agreement Practice

🔑 Key Concepts & Definitions

• Subject-Verb Agreement (see section 1): The grammatical rule that the verb must agree in number with its subject, whether singular or plural. For example, "He runs" (singular) vs. "They run" (plural).
• Error Identification in Sentence Agreement: The process of detecting incorrect verb forms that do not match their subjects in number or person, often tested in exercises to improve grammatical accuracy.
• Application of Agreement Rules in Varied Sentence Structures: The skill of correctly applying subject-verb agreement principles across different sentence types, including those with compound subjects, intervening phrases, or indefinite pronouns, as demonstrated in practice exercises.

📝 Essential Points

• Practice exercises focus on identifying correct and incorrect subject-verb agreement in diverse sentences, emphasizing common pitfalls such as with compound subjects, indefinite pronouns, and complex sentence structures (see question 1, 3, 6, 9).
• Error detection involves recognizing mismatched verb forms, such as "Neither he nor I am mistaken" versus the incorrect "am" in "Neither he nor I am mistaken" (see question 1, 9).
• Applying agreement rules requires understanding how different subjects influence verb choice, especially with collective nouns, quantifiers, and phrases like "together with" or "each of" (see questions 7, 12, 21, 33).
• The exercises reinforce the importance of context and sentence structure in determining correct agreement, such as with "The flock of geese is flying south" versus "are flying" (see question 10).

💡 Key Takeaway

Mastering subject-verb agreement involves recognizing various sentence structures and accurately applying grammatical rules to ensure agreement, which is essential for clear and correct communication in English.

📖 6. Complex Subject Constructions

🔑 Key Concepts & Definitions

• Agreement with complex subjects involving 'together with', 'as well as': When a subject includes phrases like 'together with' or 'as well as', the verb agrees with the main subject, not the intervening phrase. For example, "The teacher, together with the students, is attending the seminar" (subject 'teacher' is singular).
• Subject-verb agreement in sentences with intervening phrases: In sentences where additional phrases or modifiers are inserted between the subject and the verb, the verb still agrees with the core subject, not the intervening words. For example, "The list of items is on the table" (not 'are').
• Handling agreement in sentences with multiple modifiers: When multiple modifiers or phrases are used, the verb agrees with the main subject, regardless of the number or nature of the modifiers. For instance, "The group of students has arrived" (subject 'group' is singular).

📝 Essential Points

• In sentences with complex subjects, the presence of phrases like 'together with' or 'as well as' does not change the number of the subject; the verb agrees with the main subject. For example, "The manager, as well as the staff, is responsible for the project."
• Intervening phrases such as 'along with', 'including', 'comprising', or 'consisting of' are considered additional information and do not affect the agreement; the verb depends on the core subject. For example, "The committee, including the chairman, has made a decision."
• When the main subject is singular, even if followed by multiple modifiers or phrases, the verb remains singular. Conversely, if the main subject is plural, the verb remains plural, regardless of intervening phrases. For example, "The team, as well as the coach, is preparing for the match."
• In sentences with multiple subjects joined by 'and', the verb is plural; with 'or' or 'nor', agreement depends on the closest subject. For example, "The teacher and the student are present" versus "Either the teacher or the student is responsible."

💡 Key Takeaway

In complex subject constructions, the verb agreement hinges on the core subject, not on intervening phrases or modifiers like 'together with' or 'as well as'. The presence of additional phrases generally does not alter the number agreement.

📖 7. Special Cases in Agreement

🔑 Key Concepts & Definitions

• Collective nouns acting as singular or plural: Collective nouns like "team," "committee," or "flock" can take singular or plural verbs depending on whether the group is considered as a single entity or as individual members. (see source content)

• Agreement with indefinite pronouns used as subjects: Indefinite pronouns such as "everyone," "each," "neither," "either" are generally singular and take singular verbs, but some can be plural depending on context. (see source content)

• Exceptions in agreement with expressions of time, money, distance: When these expressions are considered as units or amounts, they typically take singular verbs; however, if they refer to individual items or units, they may take plural verbs. (see source content)

• Agreement with units of measurement and quantities: Units like "kilograms," "meters," or "liters" usually determine the verb agreement based on whether the measurement is viewed as a single entity or multiple units. (see source content)

📝 Essential Points

• Collective nouns such as "team" or "committee" may be singular or plural depending on whether the emphasis is on the group as a whole or on individual members. For example, "The team is winning" (singular) vs. "The team are arguing among themselves" (plural). (see source content)

• Indefinite pronouns like "everyone" and "each" are singular and require singular verbs, e.g., "Everyone is invited." However, pronouns like "some" or "few" are plural and take plural verbs. Context determines agreement. (see source content)

• Expressions of time, money, and distance, such as "five dollars," "two miles," or "three hours," are treated as singular when viewed as a single amount or period, e.g., "Five dollars is enough." But if referring to multiple units, they may take a plural verb, e.g., "Five dollars are scattered on the table." (see source content)

• Units of measurement (e.g., "10 kilometers") generally take singular verbs when considered as a single measurement, e.g., "10 kilometers is a long distance." When emphasizing individual units, they may take a plural verb. (see source content)

💡 Key Takeaway

Subject-verb agreement in special cases depends on whether the noun or expression is viewed as a single entity or as individual parts; context and the nature of the noun determine the correct agreement.

📖 8. Quantifiers and Agreement

🔑 Key Concepts & Definitions

• Use of 'each', 'every', 'all of', 'some of': Quantifiers that determine the number of items or individuals being referred to and influence verb agreement. 'Each' and 'every' are singular and require singular verbs, while 'all of' and 'some of' can be singular or plural depending on the noun they modify (see handling with singular/plural nouns).

• Agreement with 'each' and 'every': Both are singular quantifiers that always take singular verbs because they refer to individual items or persons within a group (e.g., "Each student is responsible.").

• Agreement with 'all of' and 'some of': These quantifiers can be followed by singular or plural nouns. When followed by a plural noun, they take a plural verb (e.g., "All of the students are present."), but when followed by a singular noun or a singular noun phrase, they take a singular verb (e.g., "All of the water is gone.").

• Agreement with fractions and percentages: Fractions (e.g., one-half, two-thirds) and percentages require the verb to agree with the noun they quantify. When the noun is singular, use a singular verb; when plural, use a plural verb (e.g., "Half of the cake is gone." vs. "Half of the students are absent.").

• Handling quantifiers with singular and plural nouns: The choice of verb depends on whether the noun is singular or plural, and on the quantifier used. Quantifiers like 'each' and 'every' always require singular verbs, whereas 'some of' and 'all of' depend on the noun's number.

📝 Essential Points

• Quantifiers such as 'each' and 'every' are always singular and require singular verbs, regardless of the noun they refer to (e.g., "Every child is playing.").
• 'All of' and 'some of' can be singular or plural depending on the noun they modify. For example, "All of the water is cold" (singular), "All of the books are on the table" (plural).
• When dealing with fractions and percentages, the verb must agree with the noun's number: "One-third of the cake is left" (singular), "Fifty percent of the students are absent" (plural).
• Proper agreement is crucial in formal writing and exams, especially when quantifiers are combined with complex noun phrases or fractions.

💡 Key Takeaway

Quantifiers like 'each', 'every', 'all of', and 'some of' directly influence verb agreement based on whether they refer to singular or plural nouns; understanding their relationship with the noun's number ensures correct subject-verb concord. Fractions and percentages also require agreement with the noun's number, emphasizing the importance of context in agreement rules.

📖 9. Collective Nouns Usage

🔑 Key Concepts & Definitions

• Agreement rules with collective nouns: The rules determining whether a collective noun (e.g., 'committee', 'flock', 'team') takes a singular or plural verb, based on whether the noun is viewed as a single entity or as individuals within the group. (see source content)

• Singular vs. plural verb usage with collective nouns: When a collective noun is considered as a single unit, it takes a singular verb; when emphasizing individual members acting separately, it takes a plural verb. (see source content)

• Contextual meaning affecting agreement: The meaning or context in which a collective noun is used influences whether it takes a singular or plural verb. For example, if the group is acting together, use singular; if members are acting separately, use plural. (see source content)

📝 Essential Points

• Collective nouns like 'committee', 'flock', and 'team' can take either singular or plural verbs depending on the context (source content).
• When the collective noun is regarded as a single entity performing an action collectively, it takes a singular verb (e.g., "The committee has decided").
• When the focus is on individual members acting separately, it takes a plural verb (e.g., "The team are arguing among themselves").
• The contextual meaning is crucial; for example, "The flock is flying south" (viewed as one group) versus "The flock are fighting among themselves" (viewed as individual birds).
• Certain sentences in the source content illustrate how agreement varies with meaning, such as "Neither praise nor blame seems" (singular) versus "The committee debates" (singular or plural depending on whether the committee acts as a unit or individuals).
• Recognizing whether the collective noun is acting as a single entity or as individuals helps determine the correct verb form, especially in exam settings.

💡 Key Takeaway

The agreement of collective nouns with verbs depends on whether the group is viewed as a single unit or as individuals, with the context guiding the correct choice of singular or plural verb forms.

📖 10. Indefinite Pronouns Agreement

🔑 Key Concepts & Definitions

• Agreement with indefinite pronouns such as 'everyone', 'each', 'neither', 'either': These pronouns are singular and require singular verb forms, regardless of what they refer to (see example: "Everyone is here"). AUTHOR (date): emphasizes that indefinite pronouns like 'everyone' are always singular and take singular verbs.

• Singular vs. plural verb forms with indefinite pronouns: Certain indefinite pronouns are inherently singular (e.g., 'each', 'everyone', 'neither'), requiring singular verbs. Others, like 'few', 'many', or 'several', are plural and take plural verbs. AUTHOR (date): clarifies that the choice of verb depends on the pronoun's inherent number.

• Special agreement rules for pronouns that seem plural but take singular verbs: Pronouns such as 'everyone', 'each', 'anyone', 'nobody' appear plural but are grammatically singular and thus require singular verbs. AUTHOR (date): notes that these pronouns are exceptions to the general rule, always taking singular verbs.

📝 Essential Points

• Indefinite pronouns like 'everyone', 'each', 'neither', 'either' are grammatically singular and always require singular verbs, e.g., "Everyone is invited." This rule holds regardless of the context or the number of people implied.

• When indefinite pronouns seem plural but are grammatically singular, such as 'everyone' or 'each', they take singular verbs. For example, "Each of the students has submitted their assignment." (see source: AUTHOR (date)).

• Certain indefinite pronouns like 'few', 'many', 'several' are inherently plural and require plural verbs, e.g., "Many are present." (see source: AUTHOR (date)).

• In sentences with compound subjects involving indefinite pronouns, the agreement depends on whether the pronouns are singular or plural. For example, "Neither the teacher nor the students are ready" (plural), but "Neither the teacher nor the student is ready" (singular).

• Pronouns that seem plural but are singular, such as 'anyone', 'nobody', 'somebody', always take singular verbs, e.g., "Nobody knows the answer."

💡 Key Takeaway

Indefinite pronouns like 'everyone', 'each', 'neither', and 'either' are grammatically singular and require singular verbs, even if they refer to multiple people or things. Recognizing these special agreement rules ensures correct subject-verb concord in sentences involving indefinite pronouns.

📖 11. Number and Quantity Expressions

🔑 Key Concepts & Definitions

• Expressions of number affecting verb agreement: Phrases like "the number of" are singular and require a singular verb, e.g., "The number of students is increasing." (see source content, "The number of students in each class _________ from nearby school.").

• "A number of" and similar expressions: These indicate a plural quantity and require a plural verb, e.g., "A number of students _________ absent today." (implying plural agreement).

• Quantities like "more than half": These expressions often refer to a part of a whole and typically take a singular verb when the focus is on the whole, e.g., "More than half of the court _________ used for volleyball." (see source content, "More than half of the basketball court _________ used for volleyball practice.").

• Handling agreement with measurements of time, distance, weight: These are treated as singular units and require a singular verb, e.g., "Twenty years _________ the minimum age." (see source content, "Twenty years _________ the minimum age to fill this form.").

• Expressions involving amounts and quantities: Phrases like "half of," "each," "every," influence verb agreement based on whether they refer to singular or plural entities, e.g., "Each actor and actress _________ a line." (see source content, "Each actor and actress _________ a line in the play.").

📝 Essential Points

• Phrases starting with "the number of" are singular and take a singular verb, e.g., "The number of students is increasing."
• "A number of" refers to a plural amount and takes a plural verb, e.g., "A number of students are absent."
• Quantitative expressions like "more than half" are generally singular when referring to a singular noun or concept, e.g., "More than half of the class is present."
• Measurements of time, distance, weight, and similar units are treated as singular entities, requiring singular verbs, e.g., "Twenty years is the minimum age."
• When dealing with amounts and quantities, the agreement depends on whether the focus is on the whole (singular) or the parts (plural). For example, "Half of the class is" (singular) versus "Half of the students are" (plural).
• Expressions like "each," "every," and "the number of" influence whether the verb should be singular or plural, based on whether they refer to individual units or collective quantities.

💡 Key Takeaway

Expressions of number and quantity significantly influence verb agreement; understanding whether they imply singular or plural entities is essential for correct subject-verb concord.

📅 Key Dates

(There are no significant dates or chronological events in the provided content, so this section is omitted.)

📊 Synthesis Tables

Aspect	Singular Subject	Plural Subject	Example	Key Author/Rule
Basic Rule	Takes singular verb	Takes plural verb	The cat runs	Subject-verb agreement rule
Compound 'and'	Usually plural	Usually plural	The teacher and student are present	Coordinated subjects
'Or'/'Nor'	Matches closest subject	Matches closest subject	Neither the manager nor the employees are available	Agreement with nearest subject
Indefinite Pronouns	Singular (everyone, each)	N/A	Everyone is here	Indefinite pronouns are singular
Collective Nouns	Singular (the team is)	N/A	The team wins	Context-dependent; often singular

⚠️ Common Pitfalls & Confusions

1. Using a singular verb with a plural subject (e.g., "The books is on the table").
2. Ignoring the proximity rule in 'or'/'nor' constructions (e.g., "Neither the students nor the teacher are available" vs. "Neither the teacher nor the students are available").
3. Treating collective nouns as plural when they are singular (e.g., "The team are winning" vs. "The team is winning").
4. Confusing indefinite pronouns: 'everyone' takes a singular verb, not plural.
5. Overlooking complex subjects joined by 'and' that refer to a single entity.
6. Misapplying agreement rules in sentences with intervening phrases or modifiers.
7. Using incorrect verb forms with compound subjects of mixed number.

✅ Exam Checklist

• Know the basic subject-verb agreement rule: singular subjects take singular verbs, plural subjects take plural verbs.
• Understand how to apply agreement rules with compound subjects joined by 'and', 'or', and 'nor'.
• Recognize that indefinite pronouns like 'everyone', 'each', and 'nobody' are singular and require singular verbs.
• Be able to identify and correctly use singular and plural verb forms with regular and irregular subjects.
• Master the agreement rules for collective nouns, considering context.
• Know SMITH's definition of the invisible hand and its relevance to economic theory.
• Recognize poem lines from specific poets and match them to titles based on stylistic features.
• Be able to attribute poetic lines accurately to their authors.
• Practice identifying correct verb-subject matching in complex sentences.
• Differentiate between singular and plural verbs in various contexts.
• Understand the rules for agreement with 'neither...nor', 'either...or', and other conjunctions.
• Know the rules for agreement with quantifiers and expressions of quantity.
• Review common pitfalls such as agreement errors with compound subjects and indefinite pronouns.