| be a party to(verb, take, play, join) |
| engage(verb, take, play, join) |
| enter into(verb, expression, phrasal verb, take, play) |
| sit in(verb, expression, phrasal verb, take, play) |
| sit in on(verb, expression, idiom, phrasal verb, take) |
| tune in(verb, expression, phrasal verb, take, play) |
| associate with(verb, expression, phrasal verb, play, join) |
| be a participant(verb, play, join, perform) |
| chip in(verb, expression, phrasal verb, play, join) |
| come in(verb, expression, phrasal verb, play, join) |
| compete(verb, play, join, perform) |
| concur(verb, play, join, perform) |
| cooperate(verb, play, join, perform) |
| engage in(verb, expression, phrasal verb, play, join) |
| get in on(verb, expression, idiom, phrasal verb, play) |
| get in on the act(verb, expression, idiom, play, join) |
| go into(verb, expression, phrasal verb, play, join) |
| have a hand in(verb, expression, idiom, phrasal verb, play) |
| have to do with(verb, expression, idiom, phrasal verb, play) |
| join in(verb, expression, phrasal verb, play, join) |