| sit in on(verb, expression, idiom, phrasal verb, take) |
| assist(verb, help, cause, play, agree) |
| band(verb, help, play, agree) |
| back up(expression, help, play, agree) |
| be a party to(verb, take, play, join) |
| befriend(verb, help, play, agree) |
| coadjute(verb, help, play, agree) |
| coincide(verb, help, play, agree) |
| comply with(verb, expression, help, play, agree) |
| concert(verb, help, meet, play, agree) |
| conspire(verb, help, meet, play, agree) |
| coordinate(verb, help, play, agree) |
| espouse(verb, help, play, agree) |
| forward(verb, help, play, agree) |
| further(verb, help, cause, play, agree) |
| go along with(expression, idiom, help, play, agree) |
| help(verb, attack, cause, play, agree) |
| join forces(verb, expression, help, meet, play) |
| league(verb, help, play, agree) |
| partner(verb, help, play, agree) |