详解It is time这个句型的用法?

详解It is time这个句型的用法? it is time 的用法, it is a time to do有这个句型么 it is high time that的用法 It is/was time that 的用法 it is high time that有的在后面加（should）+动词原形,有的在后面加虚拟语气如It is high time that such practices were ended.什么时候用前者,什么时候用后者?最好系统地把it is high time这个句型的用法说一 It is the first time that .句型的问题.It is the first / second time…that…还有It was the third time that ...为什么是:It is the first time that I see you.It was the first time that I saw you.这个是我照句型写的...It is the first 有it is time for sb.doing sth.和it is time for doing sth.这个句型吗?为什么? it is 句型与there be 句型有什么用法上的区别? it is supposed that 这个句型是对的那么it supposes that 这个句型对吗 It is time We went to bed.是这个句型吗 It’s time(for sb．)to do sth it is the first time 句型用法 众所周知,it is the first time that+完成时但是在有些书上看到了 it is the first time i see u这样的用法是不是应该改成 i have seen 如果想说 那是我第一次见你 应该说成it was the It is high time that的具体用法? it is time +(that)从句.这个句型中从句为什么要用一般过去时? It is the first time that .这个句型中后面一定要跟完成时? 虚拟语气句型“it is (high)time that”中的is变成was请问：1.虚拟语气的句型“it is (high)time that”和“it was (high)time that”在句子表达的意思上有什么不同?请区别性举例,2.这个“it was (high)time that” it is time to do sth.It is time for doing sth.一样么It is time to do sth.It is time for doing sth.一样么,第二个能不能用?有第二个这个句型么? 英语 it is the first time 句型众所周知,it is the first time that+完成时但是在有些书上看到了 it is the first time i see u这样的用法是不是应该改成 i have seen u?如果想说 那是我第一次见你 应该说成it was t