insist什么意思的时候用虚拟语气,什么意思的时候用宾语从句?

虚拟语气：坚持做
宾语从句：坚持做
最方便的区分方法就是，当动词是已经做过的时候用宾语从句，还没做的就用虚拟语气
例：He insisted that he didn't steal her money
He insisted that she should be sent to school.

宾语从句
表示“坚持说；坚决认为(多与别人的观点不同)”,接that从句(从句的动作多为已发生之事),从句使用陈述语气.如：
　　She insisted that he was wrong.
　　她坚持认为他错了.
虚拟语气
表示“坚决主张；坚持要求”,接that从句(从句的动作为将要发生之事),谓语多为 should型的虚拟语气,即：主语+ should(可省略)+动词原形.如：
　　He insisted that we (should) accept these gifts.
　　他一定要我们收下这些礼物.
　　Jane insisted that he be present.
　　简坚持要他出席.
　　还可用于“insist on / upon + 名词或代词或 动词-ing形式”结构中.如：
　　He insisted on / upon my going with him.
　　他坚持要我跟他一起去.(= He insisted that I [should] go with him.)
　　I insist on seeing it.我一定要见到它.(= I insist that I see it.)
　　Ⅲ.if you insist 常用于口语中,表示勉强同意.如：
　　All right,I’ll do it,if you insist.
　　好吧,如果你一定要我干这事,我就去干
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