used before a full verb to form negative sentences and questions
Example:
- I don't like fish.
- They didn't go to Paris.
- Don't forget to write.
- Does she speak French?
used to make question tags (= short questions at the end of statements)
Example:
- You live in New York, don't you?
- She doesn't work here, does she?
used to avoid repeating a full verb
Example:
- He plays better than he did a year ago.
- She works harder than he does.
- He put more feeling into the words than he had ever done before.
- ‘Who won?’ ‘I did.’
- ‘I love peaches.’ ‘So do I.’
- ‘I don't want to go back.’ ‘Neither do I.’
used when no other auxiliary verb is present, to emphasize what you are saying
Example:
- He does look tired.
- She did at least write to say thank you.
- Do shut up!
used to change the order of the subject and verb when an adverb is moved to the front
Example:
- Not only does she speak Spanish, she's also good with computers.