Auxiliary verbs, also known as helping verbs, are used in conjunction with the main verb of a sentence to create various tenses, voices, moods, and aspects. The primary auxiliary verbs in English are “be,” “have,” and “do.” Here’s a breakdown of their uses:
1. Be:
– Present tense: am, is, are
– Past tense: was, were
– Future tense: will be, shall be
– Example: He is studying for exams.
2. Have:
– Present tense: have, has
– Past tense: had
– Future tense: will have, shall have
– Example: They have completed the project.
3. Do:
– Present tense: do, does
– Past tense: did
– Future tense: will do, shall do
– Example: She does her homework diligently.
These auxiliary verbs are also used in combination with the main verb to create verb phrases for different aspects, such as continuous, perfect, and passive:
-Continuous aspect: is/are/am + present participle (e.g., is studying, are playing)
– Example: They are watching a movie.
– Perfect aspect: have/has/had + past participle (e.g., have eaten, had finished)
– Example: She has already visited that museum.
– Passive voice: be + past participle (e.g., is/was written, are/were seen)
– Example: The letter was written by him.
These auxiliary verbs play a crucial role in forming grammatically correct and meaningful sentences in English.
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