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...
Beer is used to be the party drink. 啤酒可以被用作派对饮品
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