Could or Can
1.Could you get me a cup of coffee?
2.Can I have a cup of coffee?

What the difference ?

Question

Could or Can
1.Could you get me a cup of coffee? 
2.Can I have a cup of coffee?

What the difference ?

Answer

If you're asking a waiter for coffee in a restaurant, either one means the same thing.

Otherwise,
1. This is asking the other person to get the coffee for you.
2. This could mean the same as #1 OR it could be used to ask permission to get coffee for yourself.

Hope this helps!

Answer

The difference between can and could comes in three flavors. This flavor is one of politeness. It is considered more polite to ask, "Could you open the window?"

Don’t miss out on the opportunity to learn a language from the comfort of your own home. Browse our selection of experienced language tutors and enroll in your first lesson now!