- not believe your ears/eyes
- not believe your eyes
- not be much good
- not be supposed to
- not be supposed to do
- not be supposed to do sth
- not be up to much
- not be up to the mark
- not be wearing a stitch
- not be wearing a stitch
- not bother about
- not bother with
- not bother your head about
- not bother your head about sth
- not bother your head with
- not bother your head with sth
- not bother yourself about
- not bother yourself about sth
- not bother yourself with
- not bother yourself with sth
- not bother yourselfyour/ head about
- not bother yourselfyour/ head with
- not bother yourself/your head with/about sth
- not break the bank
- not-breathe-a-word