4. insist insist on/upon sth/ doing 坚持做，坚决做 insist that-clause 坚持认为, 坚持说… 从句通常用虚拟语气, (should) not +V原 而且主句的主语与从句的不一致 类似用法的词还有: suggest; demand; require ,advise, conmand… eg. Mother insisted that I should not watch TV all the time. He insisted that we accept these gifts. 但是表示坚持一个事实, 一个主张或想法时, 不用虚拟语气 eg. He insisted that he caught sight of a man in the room at that time. Ex. 她坚持说你那天晚上是在场的. She insisted that you were present that night.