| ask(verb, order, go, present, promote) |
| investigate(verb, action, study, get, check) |
| query(verb, get, go, check, promote) |
| question(noun, verb, study, order, get) |
| interrogate(verb, study, order, force, check) |
| examine(verb, action, study, check, separate) |
| seek(verb, action, study, go, check) |
| enquire(verb, examine, challenge, doubt, seek) |
| probe(noun, verb, action, study, check) |
| conduct research |
| survey(verb, study, check, consider, criticize) |
| search(noun, verb, action, study, check) |
| explore(verb, action, study, check, separate) |
| quiz(verb, check, examine, measure, challenge) |
| challenge(verb, order, go, force, press) |
| pry(verb, study, check, consider, hinder) |
| study(verb, check, consider, observe, mind) |
| demand(verb, order, get, go, present) |
| inspect(verb, study, check, consider, observe) |
| call out(expression, question, dispute, demand, claim) |