keep track of the timekeep tryingkeep under ones hatkeep under one's hatkeep under surveillancekeep under wrapskeep under your hatkeep upkeep up appearanceskeep up at nightkeep up one's end of the bargainkeep up the good workkeep up the great workkeep up the pacekeep up to datekeep up to date withkeep up whitkeep up withkeep up with joneseskeep up with mekeep up with sb sthkeep up with someonekeep up with the joneseskeep up with the latest fashionkeep up with the timeskeep us a livekeep us on our toeskeep verb in ing formkeep vigilkeep waitingkeep warmkeep watchkeep watch one's bedkeep wavingkeep waykeep weight offkeep wolves at baykeep wordkeep workkeep you downkeep you on the edge of your seatkeep you postedkeep your back coveredkeep your chin upkeep your coolkeep your ear to the groundkeep your ears to the groundkeep your eye on the ballkeep your eye on the prizekeep your eyes open