Question

could的用法要全

Answer 1

could

could

AHD:[k‹d]

D.J.[kud]

K.K.[k&d]

v.aux.（助动词）

can的过去式

Used to indicate ability,possibility,or permission in the past:

用来表示过去的能力、可能性或允许：

I could run faster then.It could be no better at that time.Only men could go to the club in those days.

那时我能跑得更快.那时好得不能再好了.在当时,只有男人可以去俱乐部

Used with hypothetical or conditional force:

用来表推测或条件：

If we could help,we would.

如果我们能帮上忙,我们会帮的

Used to indicate tentativeness or politeness:

用于表示试探性或礼貌：

I could be wrong.Could you come over here?

我也许错了.你能到这边来吗?