Synonyms to every so often

occasionally, at infrequent intervals, at intervals, at odd times, at times, at various times, betweentimes, betweenwhiles, brokenly, by catches, by fits, by jerks, by skips, by snatches, disconnectedly, discontinuously, fitfully, haphazardly, here and there, in spots, infrequently, intermittently, irregularly, now and then, off and on, on divers occasions, on occasion, once and again, only occasionally, only when necessary, per saltum, periodically, randomly, skippingly, sometimes, sporadically, uncommonly, willy-nilly, ad interim, between acts, during the interval, en attendant, for a time, for the meantime, for the nonce, in the interim, in the meanwhile, meantime, meanwhile, pendente lite, until then, constantly, ad infinitum, again and again, always, at a stretch, at all times, at every turn, at regular interval