It's time for you to go to school.此处为什么用for不用to?

It's time for you to go to school.此处为什么用for不用to? 为什么要用it's time foryou i to go to school而不是it's time for you It's time (for还是to) go to school it's time for us to go to school it's time for him [ to go ]to school It's time _us to go to school横线上介词为什么for? It's time for go to school 哪里错了 It's time to go to school.It's time for lunch翻译 It's time for school和It'stime to go to school的区别 It's time for me to go to school 可以 不加to吗 It was time for Henry to go to school. It's time for us to go to school,so let's( )the promblem and