it是主语时,动词后面能接to it is said

it是主语时,动词后面能接to it is said 以it作形式主语,不定式作真正的主语,不定式to后面的动词可以是不及物动词吗? I find it difficult to V 与 I find it's difficult to v是否能用当主句的主语与从句的主语...I find it difficult to V 与 I find it's difficult to v 能否用当主句的主语与从句的主语一致时从句的主语与谓语动词Be it做形式主语,后面紧跟的动词加s? it 后面动词是do sth.还是to do sth. see to it that中的it 是that后面引导的从句的形式主语吗? 动词不定式后面的名词是什么成分?例如：I want to do it.it 是什么成分? 形式主语后面加什么I know it is useful to learn a language well it 作形式主语后面能接两个主语从句吗When they will start and where they go have not been decided yet.把这句话转化为it作形式主语怎么转化呢?由两个以上主语从句作主语,谓语动词用复数,但是转化为it形 I think it is a good way to learn English ____ ____English movie.(watch)应填什么?watching,可我认为是to watch,因为it是形式主语,真正的主语应用动词不定式,为什么? it作形式主语的问题it 作形式主语的句型是 it + be动词,还是it + 谓语动词? 关于形式宾语的问题it做形式宾语时,句中it后面为什么不要加联系动词?例如：I consider it important to ask the teacher. I find that it is useful to learn English.it是形式主语, too 和enougheg.too ...to v.(动词)enough ...to v.(动词) it就是哪个后面是有it的. i she it后面是不是都需要跟动词或者是BE动词 It is +adj+ to do sth中It是形式主语吗?真正的主语是动词不定式to do st I found it difficult to get to sleep.主语是 to get to sleep? I think it easy for me to work out the problem的同义句是在it 的后面加上一个be动词啊？