动词后加-ing的规则1.英语动词加-ing,通常是在原形词尾直接加-ing构成:cough—coughing,climb—climbing,stand—standing,fight—fighting2.以-e结尾的动词(1)如果动词原形以一辅音加一不发音的-e结尾,一般应去掉e再加ing:write—writing,hope—hoping,care—caring,stare—staring,plane—planing,have—having,save—saving,produce—producing,breathe—breathing(2)以-ie结尾的动词应先将e去掉,将i变成y然后再加-ing:die—dying,tie—tying,vie—vying,lie—lying(3)以-ee,-oe,-ye结尾的动词加-ing时应保留词尾e:see—seeing,flee—fleeing,free—freeing,agree—agreeing,hoe—hoeing,dye—dyeing,eye—eyeing(4)以-ue结尾的动词大多应先去e再加-ing:sue—suing,imbue—imbuing,construe—construing,pursue—pursuing,rue—ruing有时,词尾e可去掉也可保留:glue—gluing或glueing,cue—cuing或cueing,blue—blueing或bluing,true—truing或trueing,clue—clueing或cluing3.以一元音加一辅音结尾的动词(1)如果动词最后一音节为重读闭音节,最后一个字母需要重复:run—running,stop—stopping,hop—hopping,plan—planning,star—starring,control—controlling但辅音x是个