现在式转换为过去式I think I was have a good time on this vacation.这句话是标准的过去式吗?

问题描述:

现在式转换为过去式
I think I was have a good time on this vacation.这句话是标准的过去式吗?

错了
应该是I think I had a good time on this vacation

I think I had a good time this vacation.
have的过去式是had,不要在他前面加be动词.
this的前面不用加任何介词.