to fall short ofto fancy somebodyto fast track a projectto fearher onss nestto feather one’s nestto feather one's nestto feel as if a cat has kittened in one's mouthto feel blueto feel downto feel fresh as a daisyto feel homesickto feel left outto feel liketo feel like a wallflowerto feel pity for someoneto feel sorryto fend for oneselfto fightto fight climate changeto figure asto figure someone as somethingto figuring outto fill into fill in timeto fill outto fill out the packto fill someone in on somethingto findto find a subjectto find an answer to a problemto find comfortto find outto find similarto find the ring she began burrowing under the booksto fineto finger one as someoneto finishto finish strongto fireto fire a shotto fire from the hipto fire into the crowdto fish for complimentsto fish in troubled watersto fit in with the worldto fit sb for sthto flavor spliceto flay an oxto flee half cladto flick through