1）used to do（过去常常做某事/前面没有be动词，后面跟动词不定式）. 2）be used to doing（习惯于做某事/前面有be动词，to …
英语中used的用法很多，used to、be used to do、be used to doing用法及区别，十分容易混淆，下面就以used的常见用法做以说明 …
used to do 和 be used to doing | 一句话语法. 含义. I used to do something = I did it regularly in the past but no longer do it. …
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