have been doing sth 和 have +过去分词 有什么不一样?看见since 之类的词 是应该用哪种形式?如题
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have been doing sth
have been doing sth是什么时态?
Have/has been 后一定要加doing sth.吗?
have(has) been doing sth 造句写翻译
have fun doing sth
have fun doing sth.
have trouble doing sth
have trouble doing sth
have sth doing用法?
have been doing sth=have 直接加动词过去分词吗?
英语中have been doing sth和have done 的区别?同上
have been doing sth和现在完成时有区别吗?我上课记得老师说现在完成时后面加什么就等于have been doing sth这个延续的句型.
have difficulty in doing sth .have trouble in doing sth
是have difficulty doing sth还是have difficult doing sth?
have difficulty doing sth可以写成 have difficulties doing sth
have been (ing) doing sth.意思?有(ing)吗?
have somebody do sth 还是doing sth?
have fun( in) doing sth