How to say no in English

I can"t right now, but maybe later. This mean perhaps in the future.

Unfortunately, I"ve had a few things come up. This means something unexpected has happened.

I"m trying to focus on finishing off some other things. This is another way of saying you have some unfinished business.

I"m sorry I can"t. This simply says it"s impossible for you.

I can"t at that time, but I"m happy to help you with something else later. This is very polite. You say no but offer you help for other things.

Sorry but that isn"t my strong suit. This is another way of saying you won"t be good at that.

I"m sure you will do fine on your own. This is a polite way of telling someone to do it themselves.

I"m afraid I"m committed to something else. Say this if you have other plans.

I really don"t enjoy that kind of activity. Or, I don"t like to do that.

I"m sorry, but I have an emergency to attend to. This says you have something urgent you must do.