Grammar: Word classes: Verbs: Verb formation
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Auxiliary verbs (be, have, do) | |
The auxiliary verb do
The auxiliary verb do is typically used in negative Statements and Questions with the present simple and past simple:
You don't really want to go to bed yet, do you? [present simple]
The auxiliary verb do can be used to provide emphasis in Statements:
You're wrong! I do need to go to bed. But this programme is so good ... [Statement]
The auxiliary verb do is used as a substitute for the main lexical verb when you agree or disagree:
You don't need to go to sleep yet.
Yes, I do. [Yes, I need to go to sleep.]
The auxiliary verb do is used when you want to add some similar information to what has just been stated:
Kitty likes Nintendo, and so do I. [note the inversion of Subject and auxiliary]
The auxiliary verb do is used as a substitute for the main lexical verb in question tags:
You don't want to stop playing Nintendo now, do you?
For more information, see:
Here is a summary of the forms of the auxiliary verb do:
| base form | present participle | past participle |
| do | doing | done |
| singular (present and past) |
plural (present and past) |
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| first person | I | do/did | we | do/did |
| second person | you | do/did | you | do/did |
| third person | he she it |
does/did | they |
do/did |
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What are auxiliary verbs? |
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