English Verb Tenses and Essential Irregular Verbs
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English Verb Tenses: Structure and Examples
This section outlines the 12 core English verb tenses, detailing their affirmative and negative structures using the verb to eat as an example. (Note: Base refers to the infinitive without 'to', V2 is the Past Simple form, and V3 is the Past Participle form.)
Present Simple Tense
Affirmative: Subject + Base / Subject + Base + s (for 3rd person singular)
Negative: Subject + do/does not + Base
Example: I eat / I do not eatPresent Continuous Tense
Affirmative: Subject + am/is/are + Verb + ing
Negative: Subject + am/is/are not + Verb + ing
Example: I am eating / I am not eatingPresent Perfect Tense
Affirmative: Subject + have/has + V3
Negative: Subject + have/has not + V3
Example: I have eaten / I have not