it is said that后的从句用什么时态是固定的吗还是?例如It is said that the food at the restaurant ___（taste） quite berrible是tastes 为什么

有没有it was/had been + said that +从句这种结构若有的话那从句的时态用什么还是只有it is said that这种 it is said that后的从句用什么时态是固定的吗还是?例如It is said that the food at the restaurant ___（taste） quite berrible是tastes 为什么 It is said that that was all that he said.这三个that分别是什么从句? it is said that为什么不是宾语从句 It is said that. it is said that的问题it is said that he has recovered...为什么不是it is said that he had recovered...主句式过去时,从句不也要是过去时吗 it was said that 后面的句子是什么状语从句 it is said that用法在过去·现在·将来时态的一般形式顺便将sb.is said to 一般形式讲下（从句） 这句话如果改写成用as引导的定语从句,应该怎么改?原句:It is often said that in war,the winners writes the history. it is said that后加什么时态 it is said that后加什么词 It's said+that从句,“据说……”,为什么不是It says+that从句It's said+that从句 是“据说……”的意思,为什么不是这样：It says+that从句?莫非It's said用的是被动语态,意思是“事情被说成是……”,所 英语句子,用的什么语法?It is that that was that he said. it is/was the time that it is/was the frist time that 后接从句用什么时态? it is +adj.+that从句 这种结构所指的“从句”是什么从句?从句要用虚拟语气吗? it is said that的固定结构可以改成 it was said that? 为什么是It is said that 而不是It said that 英文据说的用法及造句it is said that it is said to beit is said to do 请帮各造些句.