现在式 一般现在时:am/is/are+taught
现在进行时:am/is/are+being+taught
现在完成时:have/has+been+taught
现在完成进行时:have/has+been+being+taught
一般现在 am/is/are taught
现在完成 have/has been taught
一般将来 will be taught
一般过去 was/were taught
现在进行 am/is /are being taught
情态动词 can/ may/ must/should be taught
过去将来 would be taught
过去完成 had been taught
过去进行 was /were being taught
am/is/are taught
have/has been taught
will be taught
was/were taught