What's the difference between ''would be able to'' and ''could'' ?

If I could understand the question I would be able to answer it.

Hi again, Max!

IMHO, "would be able" only refers to the notion of ability (in the contitional):

- If he studied English, he would be able to understand you.

- If my wrist weren't in a cast, I would be able to help you put these boxes away.

Whereas "could" may also refer to a logical possibility:

- Don't go there, it could be dangerous!

P

Also, both forms appear in reported speech:

1. "Yes, I'll be able to come" =>

1a. He said he would be able to come.

2. "Yes, I can come" =>

2a. He said he could come.

MrP

what is the difference in grammar between would and could in a question

Anonymouswhat is the difference in grammar between would and could in a question

would: willingness
could: potentiality, capability

The difference in meaning has already been shown above.
There is no difference in grammar. Both are modal verbs, and both occur in the same position in questions.

Would you help me?
Could you help me?

CJ

what is the diffirent betwen would be able could

what is the different between could and would?

>what is the DIFFERENCE between could and would?
See my posting in the above:-)

What i mean is the what is the difference between questions, would you do something for me and could you do something for me?