Should 应该 example:You should of bought that apple!Should I be wearing the red coat or the blue coat?你本来就应该买那苹果的!我应该穿红色的大衣还是蓝色的大衣呢?
Would 可以 example:Would you beable the hand me the keys?你可以给我那些钥匙吗?
Might 也许 example:Sarah might led my some of her money.也许Sarah会借我一些钱.
Could 可能 example:This could be the start of something bad.这可能是不好的开始.还有不懂的请问我!