I need help for a fitting regular expression.

I can do this ...

**$regexp('TT000 A TT1 B C TT22 D TT333 E TT4444 F G H TT55555','(?:^|\s)TT.+?(?>(?:\s|$))',' ') ==> ' A B C D E F G H '**

How to negate the above regular expression to get the following result?

**==> 'TT000 TT1 TT22 TT333 TT4444 TT55555'**

Thanks in advance.

DD.20140430.1212.CEST