Hoja de repaso: Mastering Present Simple Tense

📋 Course Outline

1. Present simple tense
2. Verb conjugation rules
3. Usage and examples
4. Negative form
5. Question formation

📖 1. Present simple tense

🔑 Key Concepts & Definitions

Present simple tense: A verb tense used to describe habitual actions, general truths, and fixed arrangements.

📝 Essential Points

The present simple tense is primarily used to express routines and facts. It applies to both singular and plural subjects, with verb forms adjusted accordingly (e.g., "he runs" vs. "they run"). Additionally, it can describe scheduled events, especially in timetables, making it useful for talking about planned activities in the near future.

💡 Key Takeaway

Understand the present simple as the foundation tense for expressing routines, facts, and scheduled events in English.

📖 2. Verb conjugation rules

🔑 Key Concepts & Definitions

• Base form: The simplest form of a verb without any endings. It is used as the foundation for conjugation in the present simple tense.

• Third person singular: The grammatical person that refers to "he," "she," or "it." Verbs in the present simple tense require special endings when used with these subjects.

• -s/-es ending: The suffix added to the base form of a verb in the present simple tense when the subject is third person singular. It indicates the verb's conjugation for "he," "she," or "it."

• Irregular verbs: Verbs that do not follow the standard conjugation pattern of adding -s or -es in the third person singular. They have unique forms that must be memorized.

• Spelling changes: Modifications made to the base verb before adding -s or -es, often to maintain correct pronunciation or spelling. For example, verbs ending in -y change to -ies.

📝 Essential Points

• Add -s or -es to the base verb for third person singular subjects (he, she, it). This is the standard rule for most verbs.

• For verbs ending in -y preceded by a consonant, change -y to -ies before adding the -s. For example, "carry" becomes "carries."

• Some verbs are irregular and do not follow the standard -s/-es rule. Their forms must be learned separately.

• Most verbs use the base form for all subjects except third person singular, which requires the -s/-es ending.

💡 Key Takeaway

Master the specific conjugation patterns and exceptions, including spelling changes and irregular forms, to correctly form present simple verbs.

📖 3. Usage and examples

🔑 Key Concepts & Definitions

• Affirmative sentences: Sentences that state a fact or habitual action positively, often using the base form of the verb or adding an -s or -es in the third person singular.
• Common verbs: Frequently used verbs in present simple, such as 'go', 'eat', 'work', which describe regular or habitual actions.
• Time expressions: Words or phrases like 'always', 'usually', 'every day' that often accompany present simple to indicate frequency or routine.

📝 Essential Points

• Present simple is frequently used with time expressions indicating how often an action occurs. Examples include 'always', 'usually', and 'every day'.
• Affirmative sentences in present simple use the base verb for subjects 'I', 'you', 'we', 'they', and add an -s or -es for third person singular subjects like 'he', 'she', 'it'.
• Examples demonstrate correct usage in everyday contexts, such as "She works every day" or "They go to school."

💡 Key Takeaway

Recognizing how present simple is naturally paired with time expressions and common verbs helps describe habitual actions and routines in everyday life.

📖 4. Negative form

🔑 Key Concepts & Definitions

• Negative sentences: Sentences that express the absence or negation of an action.
• Auxiliary verb 'do': Used to form negatives in present simple tense.
• 'Do not' and 'does not': Negative forms for plural and third person singular subjects respectively.
• Contraction forms: Shortened negative forms like 'don't' and 'doesn't'.

📝 Essential Points

• Use 'do not' (don't) with I, you, we, they to form negatives.
• Use 'does not' (doesn't) with he, she, it for negatives.
• The main verb remains in its base form after 'do not' or 'does not'.
• Contractions are common in spoken English and informal writing, making negatives shorter and more natural.

💡 Key Takeaway

Learn to negate present simple sentences correctly by using auxiliary verbs and contractions, ensuring clarity and fluency in your speech and writing.

📖 5. Question formation

🔑 Key Concepts & Definitions

• Yes/no questions: Questions expecting a yes or no answer, typically formed by inverting the auxiliary verb with the subject.
• Wh- questions: Questions beginning with question words like who, what, where, when, why, or how, used to ask for specific information.

📝 Essential Points

• To form questions in the present simple, place the auxiliary verb 'do' or 'does' before the subject.
• Use 'does' when the subject is third person singular (he, she, it); use 'do' for all other subjects (I, you, we, they).
• For wh- questions, start with a question word followed by 'do' or 'does', then the subject.
• The main verb remains in its base form in all question types, regardless of the subject.

💡 Key Takeaway

Understanding the correct placement of 'do' or 'does' and the use of question words helps form clear and effective yes/no and wh- questions in the present simple tense.

📊 Synthesis Tables

Aspect	Present Simple Tense	Negative Form	Question Formation
Usage	Habitual actions, general truths, scheduled events	N/A	N/A
Subject Types	I, you, we, they, he, she, it	N/A	N/A
Verb Form	Base form; add -s/-es for third person singular	Base form after 'do not' / 'does not'	Auxiliary 'do'/'does' + base verb
Conjugation Rules	Add -s/-es for third person singular; spelling changes (-y to -ies) for verbs ending in consonant + y; irregular verbs vary	Use 'don't' or 'doesn't' + base verb	Use 'do'/'does' + subject + base verb; invert for questions
Examples	He runs, They eat, She works	I don't go, He doesn't like	Do you play? Does she work?

Author / Concept	Key Point
Present simple (general truths & routines)	Used to describe habitual actions and facts (see Key Concepts & Definitions)
Verb conjugation rules (add -s/-es)	Master spelling changes and irregular verbs (see Verb conjugation rules)
Affirmative sentences & time expressions	Recognize common time adverbs like 'always', 'every day' (see Usage and examples)
Negative sentences with 'do/does'	Use 'don't'/'doesn't' correctly in negatives (see Negative form)
Question formation with 'do/does'	Invert auxiliary verb with subject for questions (see Question formation)

⚠️ Common Pitfalls & Confusions

1. Forgetting to add -s/-es in third person singular forms (e.g., saying "He run" instead of "He runs").
2. Incorrect spelling change with -y verbs (e.g., "carry" → "carries", not "caryes").
3. Confusing irregular verbs that do not follow standard conjugation patterns.
4. Using the base form of the verb in negative sentences without the auxiliary (e.g., "He no go" instead of "He does not go").
5. Misplacing auxiliary verbs when forming questions (e.g., "You go?" instead of "Do you go?").
6. Using 'do/does' incorrectly with singular/plural subjects.
7. Omitting contractions in negatives ('don't', 'doesn't') in informal contexts.
8. Using the wrong auxiliary ('do' vs. 'does') with third person singular.
9. Applying present simple tense to actions that are temporary or happening now (which may require present continuous).
10. Confusing question word order or omitting question words in wh- questions.

✅ Exam Checklist

• Know the definition and primary uses of the present simple tense as a tense for routines, facts, and scheduled events.
• Master the conjugation rules: add -s or -es for third person singular; recognize spelling changes such as -y to -ies; memorize irregular verbs.
• Be able to form affirmative sentences using correct verb forms and common time expressions like 'always', 'every day'.
• Understand how to negate sentences using 'do not' / 'does not', including contractions ('don't', 'doesn't') and their placement.
• Know how to form yes/no questions by inverting 'do'/'does' with the subject.
• Be able to construct wh- questions starting with who, what, where, when, why, how followed by 'do'/'does'.
• Recognize common mistakes such as omitting -s/-es, incorrect spelling changes, or incorrect auxiliary use.
• Understand the difference between present simple and other tenses for actions happening now versus habitual actions.
• Be familiar with key authors/concepts: understand SMITH's definition of the invisible hand if applicable (though content does not specify this directly).
• Review examples of affirmative, negative, and interrogative sentences to ensure correct usage.
• Practice forming sentences with various subjects and verbs to solidify conjugation patterns.
• Confirm mastery of contractions and their appropriate contexts in speech and writing.