Which sentence has the CORRECT WORD ORDER?

If I. .......... how a good teacher Mr. Taylor was, I would have enrolled in his class years ago.

Did you know that neither Ted ............... Steve study at university?

You can find.................................... cups in the top drawer.

People over forty need .................. regular check-ups at least once a year.

Which one of the underlined words or phrases is INCORRECT? The cats always gathering around the man's front door eve…