jump,jumps,jumping,jumped;
study,studies,studying,studied;
rain,rains,raining,rained;
see,sees,seeing,saw;
buy,buys,buying,bought;
cook,cooks,cooking,cooked dinner;
stop,stops,stoping,stopped;
swim,swims,swimming,swimmed;
run,runs,running,ran;
arrive,arrives,arriving,arrived;
clean,cleans,cleaing,cleaned;
walk,walks,walking,walked;
work,works,working,worked;
play,plays,playing,played;
go,goes,going,went;
do,does,doing,did;
sing,sings,singing,sang;
eat,eats,eating,ate;
fight,fights,fighting,fighted;
read,reads,reading,read;
climb,climbs,climlbing,climbed;
row,rows,rowing,rowed;
swing,swings,swinging,swang;
wash,washes,washing,washed;
visit,visits,visiting,visited.
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