had to 后面接什么时态语法解释

admin 2017-08-09 0 次浏览

had to 后面接什么时态语法解释

had to是在英语里面是经常使用的一个词组,那么你知道had to后面接什么时态的词吗?下面是小编为你整理的had to后面接的时态,希望对你有所帮助!

had to后面接的时态

had to:不得不

had to是一般过去时态 后加动词原形, had to do sth.意为不得不做某事,必须做某事

had to 与 must have been的区别

had to强调不得不,有被迫的意思,must have been是主观的必须去做,自愿

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