不时

不时	bù shí	from time to time / now and then / occasionally / frequently
不	bù	no; not so / (bound form) not; un-
时	shí	old variant of 时
时	Shí	surname Shi
时	shí	(bound form) time; hour; period; season / (after a numeral) o'clock; hour(s) / (after a verb phrase or clause) when; while