1 You've all ganged up against me, it's not fair.

2 She feels that everyone's ganging up against her.

3 The whole class ganged up against/on her because she was the teacher's pet.

4 All the girls in my class seemed to gang up against me.

5 The whole weight of the State would be ganged up against it.

6 They will continue to gang up against the Chinese people in every possible way.

7 He said that they would not gang up against Jack's joining the club.

8 We allowed combined allied forces to gang up against them.