We can also use 'used to' in the negative form. We just add 'did not' or 'didn't'. Using our first example, we could say, 'I didn't use toplay football.'But be careful, with negative and qustion forms, we don't include 'd' at the end of 'use'.用法...
I used to cook, but I don't have time to cook now. 我以前总做饭,但是现在没时间做了 Tom used to be a couch potato, but he works out everyday now. Tom以前特别宅,但现在每天都...
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