非謂語動詞是指在句子中不是謂語的動詞,主要包括不定式、動名詞和分詞（現(xiàn)在分詞和過去分詞）,即動詞的非謂語形式.非謂語動詞除了不能獨(dú)立作謂語外,可以承擔(dān)句子的任何成分.
非謂語動詞與謂語動詞的相同點(diǎn)有
（1）如果是及物動詞都可與賓語連用,例如：They built a garden.They suggested building a garden.（2）都可以被狀語修飾：The suit fits him very well.The suit used to fit him very well.（3）都有主動與被動,“體”式（一般式；進(jìn)行式；完成式）的變化.例如：He was punished by his parents.（謂語動詞被動語態(tài)） He avoided being punished by his parents.（動名詞的被動式） We have written the composition.（謂語動詞的完成時） Having written the composition,we handed it in.（現(xiàn)在分詞的完成式） （4）都可以有邏輯主語 They started the work at once.（謂語動詞的邏輯主語） The boss ordered them to start the work.（動詞不定式的邏輯主語） We are League members.（謂語動詞的主語） We being League member,the work was well done.（現(xiàn)在分詞的邏輯主語） (5) 否定式一般用not,并且放在非謂語動詞之前