定语从句和主语从句的时态与主句应该是没有什么关系的 主句要表达的和从句要表达的可以不在同一时间,也可以在同一时间,这要看具体的情况. 例如:Who he is does not concern me. What she did is not yet known. 而宾语从句就应该与其主句的时态相对应了.因为宾语从句是动词引导的,它应该是动词时态所相对应的某种时态. 例如:He said he did not like her. I am sorry that you are ill.