Crossword Clue:

Goes back and forth quickly

Answer	Crossword Clue
YOYOS	Goes back and forth quickly
PINGPONG	Bounce back and forth quickly
YOYO	Quickly change one's mind back and forth

SHUNTS	Goes back and forth.
SEESAWS	Goes back and forth
WAGS	Goes back and forth
SWAYS	Goes back and forth
SPARS	Goes back and forth (with)
BANTERS	Goes back and forth (with)
EWE	Animal that goes back and forth?
WAGS	Goes back and forth, as a tail

TOGGLES	Goes back and forth, in a way
SAW	It goes back and forth to work?
HANDSAW	It goes back and forth in a workshop
SAW	It goes back and forth in the woods
CAR	It goes back and forth on a street or up and down in an elevator shaft