| place trust in(expression, idiom, take, assume, believe) |
| pledge oneself(verb, expression, assert, trust, undertake) |
| plight(verb, assert, undertake, affirm, promise) |
| promise(verb, assert, trust, undertake, affirm) |
| say so(verb, expression, assert, trust, undertake) |
| state(verb, assert, undertake, affirm, promise) |
| state under oath(verb, expression, idiom, assert, trust) |
| suppose(verb, hold, take, accept, consider) |
| swear to God(verb, expression, idiom, assert, trust) |
| swear up and down(verb, expression, idiom, phrasal verb, assert) |
| take an oath(verb, expression, idiom, assert, undertake) |
| take at face value(expression, idiom, take, assume, believe) |
| testify(verb, assert, undertake, affirm, promise) |
| think likely(expression, take, assume, believe, trust) |
| trust in |
| vouch(verb, assert, undertake, affirm, promise) |
| vow(verb, assert, undertake, affirm, promise) |
| warrant(verb, assert, undertake, affirm, promise) |
| accept as true(verb, expression, idiom, hold, accept) |
| accredit(verb, hold, take, accept, consider) |