Uh... Soap, you ruin everything good. This is why can't have nice things.

nice

Nice.*

"Nice." isn't actually a sentence, so that's also incorrect.

Regardless of it being a sentence or not, it is still a phrase and therefore should be used as a sentence since it is substituting one.

It's still not correct english, so you can't correct me for that. :P

You're wrong there. There can be one word sentences in the English language. They can range from questions (Where? Why?) to commands (Go! Stop!) as well as statements (Nice.) I can correct you.

Idk what a wible is but '~'

You guys are really discussing grammar..?
Anyway, Twi, I've been meaning to solve this for awhile, but couldn't find the answer, since sometimes people call you by Him/He and sometimes by She.. And there are alot of cross dressers on the Internet. Are you a lad or a lass?

Actually, that's not true. A sentence must contain a complete clause, which is an independant subject and verb.. Nice could be a subject, but couldn't be a verb. Therefore it's not a sentence, it's a sentence fragment.

Yes, we're discussing grammar.