Sorry, I can't come to your ...

Try these:

1. Thank you for the invitation, but I won't be able to attend.
2. I appreciate the offer, but I already have plans.
3. I'm sorry, but I won't be able to make it this time.
4. Unfortunately, I have a prior commitment that I need to attend to.
5. Thank you for thinking of me, but I'll have to pass this time.

Or these, if the situation is really informal: 

1. Thanks for the invite, but I can't make it.
2. Appreciate the offer, but I got other plans.
3. Sorry, but I won't be there.
4. Gosh, can't make it, I've got something else going on.
5. Cheers for the offer, but I'll pass this time.

​Vocabulary Booster Test Yourself
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