| compact(verb, agree, declare, commit, undertake) |
| consent(verb, agree, declare, commit, undertake) |
| contract(verb, agree, declare, commit, undertake) |
| covenant(verb, agree, declare, assert, commit) |
| cross heart(verb, expression, agree, declare, commit) |
| declare(verb, approve, uphold, explain, require) |
| depend on(verb, expression, phrasal verb, assert, undertake) |
| depose(verb, assert, undertake, affirm, promise) |
| engage(verb, agree, declare, commit, undertake) |
| ensure(verb, agree, declare, approve, uphold) |
| espouse(verb, agree, declare, commit, undertake) |
| give witness(verb, expression, assert, undertake, affirm) |
| guarantee(verb, agree, declare, approve, uphold) |
| have confidence in(verb, expression, idiom, phrasal verb, assert) |
| hock(verb, agree, declare, commit, undertake) |
| insure(verb, agree, declare, approve, uphold) |
| live up to(verb, expression, idiom, phrasal verb, agree) |
| maintain(verb, approve, uphold, assert, authorize) |
| make an affidavit(verb, expression, idiom, assert, undertake) |
| mortgage(verb, agree, declare, commit, undertake) |