Grammatical/Language Pet Peeves?

[Jay520]

Andrespetmonkey said:

badgenome said:
Nothing is worse than would of/should of/could of. How the fuck can you not know what the word "of" means?!

Also, when the phrase "for all intents and purposes" is mangled into "for all intensive purposes".

You never know, maybe their purposes are very intense.

Your jumping to conclusions, could of meant something else.

That should be "they're" or "there" instead. "Their" doesn't fit in that context.