doesdid的用法.

Question

does did 的用法.

Answer 1

你说的这些词都是助动词,do用在一般现在时的除了第三人称单数以外的所有人称的疑问句,否定句中,如
Do you go to school by bike every day?
Do they have lunch at 12 every day?
No,they don't.（ don't= do not.)
does用在一般现在时第三人称单数时的疑问句,否定句中,如
Does he like swimming?
Does she have English class every day?
Tom doen't go to school by bus.
did 用在过去时的疑问句和否定句中,如
Did you see a film yesterday?
Did they play basketball last Sunday?
They didn't go to Beijing last year.