| in and out(verb, expression, idiom, phrasal verb, evolution) |
| interchange(verb, change, alter, shift, reverse) |
| off and on(verb, expression, idiom, phrasal verb, irresolution) |
| reciprocate(verb, change, shift, reverse, trade) |
| up and down(verb, expression, idiom, phrasal verb, evolution) |
| beat(verb, smack, whip, evolution, lash) |
| bob(verb, shake, down, throw, dip) |
| come and go(verb, expression, idiom, alter, swing) |
| ebb and flow(verb, expression, idiom, change, alter) |
| roll(verb, move, fall, shake, swing) |
| teetertotter |
| tilt(verb, move, drop, fall, sway) |
| tilting board(noun, expression, idiom) |
| to and fro(expression, adjective, idiom, back, forth) |
| yaw(verb, move, drop, fall, sway) |
| back and fill(expression, idiom) |
| backward and forward(expression, idiom) |
| battledore and shuttlecock(expression, idiom) |
| change(noun, verb, alter, shift, swing) |
| coming and going(expression, idiom) |