bet,begin,dig,fan, hit,hop,hug,hum,knit,let,mop, nag,nip,nod,nap,pad,pop,pat,plot,plug,quit,rid,set,sit,shut,slit,spin, spit,slim,slip,slog, slot,slop,slug,slum, slur,
stop.swim,swig,sum,run,wed, win,wet,wrap,zip,
這些是雙寫加ing的,(主要的)
雙寫加ed的就不列在這裏了,有很多是不規則的.