the first time时态,有have to吗This is not the first time we've had to wait for her.the first time,以前一直见到的是过去式.the first time I saw her.是不是根据语态,什么时态都能用?had to,不得不,我学英语十几年,英文

the first time 后的时态要求? the first time 后接的时态 It's the first time ,for the first time ,the first time ,at first 区别?哪个后面加过去时态 the first time和 for the first time分别用什么时态? the first time 引导的时间状语从句有时态限制吗?如,the first time she was walking the dog对不? it is the first time应该加什么时态? this is the first time 后加什么时态 first of all,first,at first,for the first time,the first time有什么区别 for the first time和the first time和at the first time有什么区别? the first time时态,有have to吗This is not the first time we've had to wait for her.the first time,以前一直见到的是过去式.the first time I saw her.是不是根据语态,什么时态都能用?had to,不得不,我学英语十几年,英文 it is the first time和it was the first time后面接的时态各是什么? the first time和for the first time 的词性以及其他相关有by the first time it is/was the first time +that+clause中从句用什么时态? It is（was） the first time后的从句只能用完成时态吗? it's the first time that这个句型,后面除了完成时还能其他时态吗? It was for the first time that后面从句用什么时态 at the first time,for the first time,on the first day有什么区别呢?at the first time,for the first time,on the first day有什么区别呢?请举例说明, the first time 造句