定语从句中主句与从句的时态问题，请分别从 限制性定从 和 非限制性定从 作答~!

Question

请结合如下例句（不一定对）的时态进行指正和分析。
It has been a major public concern, which has triggered a heated debate.

Answer 1

无论是限制性定语从句，还是非限制性定语从句，定语从句的主句和从句的时态无严格要求，该用什么时态就用什么时态。除非在间接引语中，定语从句的时态要遵循时态一致的原则，如：
He said that it had been a major public concern, which had triggered a heated debate.
希望我能帮助你解疑释惑。追问

那你觉得这个例句当中的主从句时态在逻辑上有先后顺序吗？

追答

有的，一个在前，一个在后。

追问

那也就意味着主句用had been，从句用has been咯？

追答

对。从句可以用was。

Answer 2

我觉得用
It is a major public concern, which has triggered a heated debate. 定语从句的主句和从句时态没有严格要求，应该根据句子该用什么时态就用什么时态，
eg . He had two sons , both of whom died in the car accident last year.
He has two sons , both of whom joined the army last year .本回答被提问者采纳

Answer 3

一般情况下，复合句中间有逗号，就可以是为非限定性定语从句。追问

额……这个我会区分，关键是主句和从句前后的时态问题

追答

可以遵从“主将从现”的原则。

追问

这个好像是主语从句里的规则吧，定语难道也适用？

Answer 4

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