I'm sorry but I can't.

sorry Adjective

— You say "I'm sorry" when you have done something wrong and you feel bad. I'm sorry that I lost your jacket last night.

but Coordinator

— You use but to join two ideas and show that they are not the same. I would take you there, but I do not have my car. The changes were small but important. "Do you speak French?" "No, but I speak Spanish." It says this not in words but in pictures. — You use but to change the topic. I understand. And I'm sorry. But there is nothing I can do about it now. And that's important, but another thing that has changed is the location.

but Preposition

— except He ate everything but the meat. Any day but tomorrow would be fine. I forgot my bag. I guess there's nothing to do but go back.

but Adverb

— only There is but one sun and one earth to live on.

I Pronoun

— The person who is speaking or writing I am writing this, and you are reading it.

I Noun

— The ninth letter or the alphabet; previous H, next J. I is a vowel.

I Symbol

— A symbol meaning first, as in "George I" (which is said as "George the first"). — The symbol for iodine on the periodic table of elements. — The symbol for electrical current.

I Number

— This is the roman numeral for one (1). It may be written as I or i.

i Noun

— The ninth letter or the alphabet; previous H, next J. I is a vowel.

can't Verb

— A short way to say cannot: — #If you can't do something, you are not able to do that thing. — #If you can't do something, you are not allowed to do that thing.