| tremble(verb, move, upset, beat, disturb) |
| seesaw(verb, stop, change, twist, alter) |
| stagger(verb, upset, disturb, shake, pause) |
| alter(verb, move, change, reduce, turn) |
| quaver(verb, upset, beat, disturb, twist) |
| shilly-shally(verb, change, dispute, alter, challenge) |
| yo-yo(verb, move, change, remove, turn) |
| bob(verb, throb, drum, oscillate, palpitate) |
| falter(verb, twist, fly, pause, signal) |
| pulsate(verb, move, beat, twist, swell) |
| quake(verb, upset, disturb, shake, swing) |
| reel(verb, upset, disturb, twist, shake) |
| teeter(verb, pause, swing, hesitate, stumble) |
| waggle(verb, upset, disturb, twist, shake) |
| dither(verb, upset, disturb, shake, pause) |
| flap(verb, upset, beat, disturb, twist) |
| bend(verb, swing, sway, rock, waver) |
| doubt(verb, stop, dispute, challenge, question) |
| ebb and flow(verb, expression, idiom, change, alter) |
| flounder(pause, hesitate, stumble, falter, balk) |