求动词什么情况下加ing时,前面的字母要双答:动词 加ing时双写的情况如下:以重读闭音节结尾,末尾只有一个辅音字母的动词,要双写这一辅音字母,再加-ing.例如:begin-beginning, beg-begging, cut-cutting, get-getting; drop-dropping,run-running, swim-swimming, set-setting , sit–sitting, stop-stopping, put–putting,hit-hitting ; stop-...
哪些动词加ing要双写,哪些不要?答:原则:一个元音字母+一个辅音字母的重读闭音节结尾的词,在加ing要求双写,如:加ing双写的词有run,sit,set,cut,put,dig,stop,begin,swim,get,fit,hit,(travel)等等