写出下面单词的动词原形，第三人称单数，ing形式及过去式。

try,tries,trying,triedworry,worries,worrying,worriedask,asks,asking.askedcatch.catches.catching, caughtwalk,walks,walkingmust(情态动词无变化）begin，begins,beginning.begansleep,sleeps,sleeping,sleptborrow, borrows,borrowing,borroweduse,uses,using,usedkeep,keeps,keeping,keptrent,rents,renting,rentedclose,closes,closing.closedlose,loses,losing,lostcross,crosses,crossing,crossedborn动词bear的过去分词bear,bears,bearing,bore,born(动词过去分词)count,counts,counting,countedmean,means,meaning,meantrecit应该是recite吧recite,recites,reciting,recitedenjoy,enjoys.enjoying,enjoyedhappen,happens,happening,happenedrain,rains,raining,rainedsnow,snows.snowing,snowedwear,wears,wearing,woretravel,travels,travel(l)ing,travel(l)edremember,remembers,remembering,rememberedshine,shines,shining,shined/shoneenter,enters,entering,enteredpoint,points,pointing,pointedtouch. touches,touching,touchedwrap,wraps,wrapping,wrapped/wraptpass,passes,passing,passedbelieve,believes,believing,believedgreet,greets,greeting,greetedstart,starts,starting,startedknock,knocks,knocking,knockedshout, shouts, shouting,shoutedhold,holds,holding,heldburn,burns,burning,burned/burnt