初中学过的所有英语时态的构成方式.一般现在时 I do 现在进行时 I'm doing 现在完成时 I have don

4个回答

  • 一般现在时 I do.

    一般过去时 I did.

    过去进行时 I was doing.标志词 while

    一般将来时 I will do.结构 will do

    现在完成时 I have (ever)done.标志词 ever already

    现在完成进行时 I have been doing.结构 have (has) been doing

    过去完成时 I had done.

    过去完成进行时I had been doing.