| hit upon(verb, expression, phrasal verb, break, meet) |
| inquire(verb, check, follow, examine, pursue) |
| learn(verb, see, follow, reveal, find) |
| leave no stone unturned(verb, expression, idiom, check, bother) |
| look for(verb, expression, phrasal verb, beat, check) |
| look high and low(verb, expression, idiom, check, follow) |
| meet(verb, break, see, catch, observe) |
| meet with(verb, expression, phrasal verb, break, meet) |
| nose(verb, follow, pursue, seek, investigate) |
| notice(verb, meet, see, catch, observe) |
| observe(verb, meet, see, catch, strike) |
| perceive(verb, meet, catch, strike, notice) |
| pick up on(verb, expression, idiom, phrasal verb, determine) |
| pinpoint(verb, meet, establish, catch, strike) |
| probe(verb, check, determine, follow, examine) |
| pry(verb, check, determine, follow, examine) |
| ransack(verb, beat, check, follow, examine) |
| recognize(verb, meet, see, catch, observe) |
| ride(verb, bother, follow, annoy, harass) |
| root(verb, check, follow, examine, pursue) |