1、主从现在起止时间状语从句和条件状语从句和让步状语从句,一般是将来时主句,从句用一般现在时一般将来时。
如: When I grow up, I will be a nurse and look after patients/ I want to be a nurse and look after patients.
2、如果主句是祈使句,则从句用一般现在时。
如:Please let me know if he comes back.
3、现在时的主要感觉是,如果句子中有一个情态动词,那么情态动词在动词的一般现在时之后,即动词原形。
如:If you feel hungry ,you should eat something.
扩展信息:
如果主句的时态是一般将来时,那么一般现在时应该使用
例如:I will tell him about it when he comes.
If it is fine tomorrow, we will go outing.
如果if的条件状语从句遇到变换间接和直接时 , 祈使句应用not....to....
如:Don't close the window if the rain stops, she said.
→She said not to close the window if the rain stops.
如果是表一般性情况是不是可以用主现从现?
追答一般情况当然可以用主现从现啊
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