| cooperate(verb, help, play, agree, aid) |
| participate(verb, help, play, agree, aid) |
| abet(verb, help, play, agree, aid) |
| advance(verb, help, play, agree, aid) |
| agree(verb, help, play, aid, unite) |
| aid(verb, help, play, agree, unite) |
| apportion |
| assist(verb, help, play, agree, aid) |
| back up(verb, expression, phrasal verb, help, play) |
| band(verb, help, play, agree, aid) |
| be in cahoots(verb, help, play, agree, aid) |
| befriend(verb, help, play, agree, aid) |
| chip in(verb, expression, phrasal verb, help, play) |
| coadjute(verb, help, play, agree, aid) |
| coincide(verb, help, play, agree, aid) |
| collaborate(verb, help, play, agree, aid) |
| combine(verb, help, play, agree, aid) |
| comply with(verb, expression, phrasal verb, help, play) |
| concert(verb, help, play, agree, aid) |
| concur(verb, help, play, agree, aid) |