| fall in with(verb, expression, idiom, phrasal verb, follow) |
| follow(verb, enter, cooperate, enlist, enroll) |
| go into |
| go to(verb, expression, phrasal verb, follow, enter) |
| make the scene(expression, idiom) |
| mingle with(verb, expression, phrasal verb, follow, enter) |
| pair with(verb, expression, phrasal verb, follow, enter) |
| partake |
| participate in(verb, expression, phrasal verb, join, participate) |
| plug into(verb, expression, phrasal verb, follow, enter) |
| second |
| side with(verb, expression, phrasal verb, follow, enter) |
| sign on(verb, expression, phrasal verb, follow, enter) |
| sign up(verb, expression, phrasal verb, follow, enter) |
| sit in |
| sit in on(expression, idiom) |
| take part(verb, expression, idiom, play, perform) |
| take up(verb, expression, join, enter) |
| take up with(verb, expression, idiom, phrasal verb, follow) |
| team up with(verb, expression, idiom, phrasal verb, follow) |