问题标题：
谁知道非谓语动词的英文定义啊?
问题描述：
谁知道非谓语动词的英文定义啊?
姜柏军回答：
Non-FiniteVerbs:
Inlinguistics,anon-finiteverb(oraverbal)isaverbformthatisnotlimitedbyasubject;andmoregenerally,itisnotfullyinflectedbycategoriesthataremarkedinflectionallyinlanguage,suchastense,aspect,mood,number,gender,andperson.Asaresult,anon-finiteverbcannotgenerallyserveasthemainverbinanindependentclause;rather,itheadsanon-finiteclause.
Bysomeaccounts,anon-finiteverbactssimultaneouslyasaverbandasanotherpartofspeech;itcantakeadverbsandcertainkindsofverbarguments,producingaverbalphrase(i.e.,non-finiteclause),andthisphrasethenplaysadifferentrole—usuallynoun,adjective,oradverb—inagreaterclause.Thisisthereasonforthetermverbal;non-finiteverbshavetraditionallybeenclassifiedasverbalnouns,verbaladjectives,orverbaladverbs.
Englishhasthreekindsofverbals:participles,whichfunctionasadjectives;gerunds,whichfunctionasnouns;andinfinitives,whichhavenoun-like,adjective-like,andadverb-likefunctions.Eachofthesekindsofverbalsisalsousedinvariouscommonconstructs;forexample,thepastparticipleisusedinformingtheperfectaspect(tohavedone).
