when,if用作主过从过的情况

如题所述

看例子就明白了,when he came, the film had been over. We didn't know if he had finished his homework. When引导时间状语从句,if 引导宾语从句
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第1个回答  2017-11-15
When she was sucking my cock my cum got in her mouth.
If she was sucking my cock my cum would get in her mouth.

when是 时间逻辑 前后句式需要有时间上的一致, if引导条件 所以从句是虚拟语气 用将来时,如果if条件是过去式,从句就是过去将来式
第2个回答  2015-12-06
主过从过·? 是主句过去式和从句过去式么的意思么?追问

追答

When she was sucking my cock my cum got in her mouth.
If she was sucking my cock my cum would get in her mouth.

when是 时间逻辑 前后句式需要有时间上的一致, if引导条件 所以从句是虚拟语气 用将来时,如果if条件是过去式,从句就是过去将来式

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第3个回答  2015-12-06
When问时间
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