Synonyms to keep coming

come again, alternate, be here again, circle, come and go, come around, come round, come round again, come up again, copy, cycle, ditto, do a repeat, do again, do over, double, duplicate, echo, go back, go back to, imitate, intermit, oscillate, parrot, plagiarize, pulsate, pulse, quote, reappear, recur, redo, redouble, reduplicate, reecho, regurgitate, reincarnate, renew, reoccur, repeat, reproduce, resound, resume, return, return to, reverberate, revert, revisit, revive, revolve, roll around, rotate, say again, turn, undulate, wheel, wheel around, CRT spot, DM display, Doppler signal, IF signal, IM display, RF echoes, accord, acknowledge, acknowledgment, act like, action and reaction, adumbration, affect, agree, agree in opinion, agree with, answer, answer back, answering, antiphon, antiphonal chanting, antiphony, ape, assume, automatic reaction, autonomic reaction, back answer, back talk, backchat, be affected, be in tune, be inspired, be involved, be moved, be reflected, be sent back, beam, beat signal, blips, boom, booming, borrow, bounce back, bounceback, bounces, care about, caring, catc