这四个词是动词give 的四种不同形式,give是原形,gives用语第三人称单数形式,而giving 是现在分词,一般用语进行时态,或分词短语.to give 是动词不定式.不定式的功能有很多,如做主语,定语,主语,表语,状语等.如果举例实在是太多了.在字典里查give.就可以看到各种应用的实例.动词give： Please give me an apple.gives: He gives his mother alot of help.giving:I'm giving you suggestions now. to give:To give or not to give , that is a question.I wantto give you some suggestions. My pleasure is to give you some help.To give you some help I must learn more.