| join(verb, contribute, participate, share, partake) |
| partake(verb, play, join, aid, perform) |
| participate(verb, take, play, join, aid) |
| appear |
| attend |
| sit in on(verb, expression, idiom, phrasal verb, take) |
| strike(noun, verb, stop, protest, walk) |
| enter into(verb, expression, phrasal verb, take, play) |
| raise a howl(expression, idiom) |
| alter(verb, change, follow, restore, supply) |
| audit(verb, review, inspect) |
| back up(verb, expression, phrasal verb, change, play) |
| be a party to(verb, take, play, join, aid) |
| be into(verb, take, play, join, aid) |
| boycott(verb, stop, quit, negotiate) |
| chip in(verb, expression, phrasal verb, play, join) |
| contribute(verb, play, join, aid, assist) |
| cover |
| demonstrate(verb, display) |
| displace(verb, change, follow, alter, restore) |