GRAMMAR REVIEW! Auxiliary verbs: be, do, have
"Be," "do," and "have" are the three main auxiliary verbs in English. They're used alongside main verbs to form different tenses, voices, or moods. Here's a breakdown of how each one works:
1.
BE as an auxiliary verb
Uses:
Progressive (continuous) tenses: to show ongoing action.
Passive voice: to show that the subject is acted upon.
Examples:
• Progressive
She is running a marathon.
They were watching a movie.
• Passive
The cake was baked by Sarah.
The books are being read by the students.
2.
HAVE as an auxiliary verb
Uses:
Perfect tenses: to show completed action or connection to the present/future/past.
Examples:
• Present Perfect
I have eaten lunch.
• Past Perfect
She had finished before the meeting started.
• Future Perfect
They will have arrived by noon.
3.
DO as an auxiliary verb
Uses:
• Questions
Do you like pizza?
Did she call you?
• Negatives
I do not know the answer.
He didn't go to the party.
• Emphasis
I do want to help!
She did finish the report on time.
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