should和be able to能连用吗

可以连用should be able to翻译为：应当能，
例句：
If I knew English, I should be able to read these English books.
假如我懂英语，我就能读这些英语书了。
It is a very poor photocopy but you should be able to make something of it.
那个照相复制本非常蹩脚，不过你应该能够看懂的。
At your age, you should be able to work out your own future.
在你这个年龄，你应该能够决定自己的前途。
其中，be able to后面接动词原形，翻译为能、会，be able to 还可以组成其他词组，如
not to be able to do something for toffee无能力做某事...；not be able to see a wink什么都看不见,一点光...

是可以连用的。
举例说明。
You should be able to work at least half an hour at a time without stopping
你需要不停止的至少工作半小时