Question

如果when后面是过去时，没有明显的提示我怎么知道主句是过去完成时还是一般过去时例如when i went home,m

Answer 1

如果说when I got home ,my mother was cooking lunch.意思是当我到家的时候，我妈妈正在做饭。如果说when I got home,my mother had finished cooking lunch.意思是当我到家的时候，我妈妈已经做完饭了。两个都可以，根据实际情况。