the first time时态,有have to吗

题目

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,英文虽然不太好,但没见过have to,曾记得我某个老师说没有have to.到底有没有have to

答案

跟过去式时应该是the first time作时间状语的情况,比如：The first time he saw her,he fell in love with her.而this/it is (not) the first time这个结构是与完成时一块用的,后跟have+过去分词,这是固定用法.have to比较特殊,虽然也具有情态动词的功能,但却与其他的情态动词不同,它有人称、数和时态的变化.