1.主句是一般現(xiàn)在時或一般將來時,賓語從句的時態(tài)可以是所需要的任何時態(tài)。
She says (that)she works from Monday to Friday.
她說她從周一至周五上班。(從句是一般現(xiàn)在時)
She says (that)she went to Mount Emei last week.
她說上周去了峨眉山。(從句是一般過去時)
2.主句是過去時,賓語從句的時態(tài)只能用相應的過去時態(tài)。
He said there were no classes yesterday afternoon.
他說昨天下午沒有課。(從句是一般過去時)
He promised her that he was going to take care of the baby.
他向她許諾會去照看這個嬰兒。(從句是過去將來時)