| obligate(verb, agree, declare, commit, undertake) |
| pass(verb, agree, declare, commit, undertake) |
| pawn(verb, agree, declare, commit, undertake) |
| pledge oneself(verb, expression, assert, undertake, affirm) |
| plight(verb, agree, declare, assert, commit) |
| profess(verb, declare, commit, undertake, affirm) |
| say so(verb, expression, agree, declare, assert) |
| secure(verb, agree, declare, approve, uphold) |
| state(verb, approve, uphold, explain, require) |
| state under oath(verb, expression, idiom, assert, undertake) |
| stipulate(verb, agree, declare, approve, uphold) |
| string along(verb, expression, phrasal verb, agree, declare) |
| subscribe(verb, agree, declare, commit, undertake) |
| swear on bible(verb, expression, idiom, agree, declare) |
| swear to God(verb, expression, idiom, assert, undertake) |
| swear up and down(verb, expression, idiom, phrasal verb, agree) |
| testify(verb, assert, undertake, affirm, promise) |
| underwrite(verb, agree, declare, approve, uphold) |
| vouch(verb, declare, assert, commit, undertake) |