andyou'vetakenallyoucanbear这句话中为什么you要加'veyou've是意思,什么情况下才要这样写?

Question

and you've taken all you can bear
这句话中为什么you要加've
you've是意思,什么情况下才要这样写?

Answer 1

“and you've taken all you can bear”中的you've taken是you have taken的意思,采用的是现在完成时,即you have done sth.
you’ve done是you have done的缩写,它一般或更多是用在口头语上,书面语言不提倡使用.和这个相似的还有I've,they've
其次是you've也可以理解为you have...(你有...)但根据你句子上的意思,只能理解为you have done(你已经做了...)现在完成时形式.