语法精讲 | 动词什么时候加ing

　　1动词加ing做谓语情况

　　做谓语时动词加ing前面必须加上be动词,形成be+动词ing(现在分词)作句子谓语，构成进行时态句子。

　　例如:

　　He is reading a book no.他正在看书.

　　He as atching TV hen his mother ca in.他妈妈进来时，他正在看电视。

　　They've been aiting for you for three hours.他们等你三个小时了.

　　1动词加ing做非谓语情况

　　1、动词作介词的宾语要加ing(动名词)

　　I'm looking forard to seeing you again.我期盼着见到你.

　　The boy is so excited about hearing from his mother.男孩为收到他妈妈的来信很兴奋。

　　2、部分动词用动词做宾语。做宾语的动词要加ing(动名词)

　　I Practising speaking English Every day.我每天练习说英语.

　　Could you mind opening the door?你介意开门吗？

　　I have finished reading three books.我已经看完三本书.

　　The old man Enjoys living in the untry.这老人喜欢住在农村.

　　3、一些固定句式后面要加动词ing(现在分词)

　　We have fun Playing in the park on Sunday.

　　Most students have problems speaking English.

　　4、动词修饰名词做后置定语时，要加ing(现在分成)

　　There is a boy Crying over there.

　　I felt sothing moving in the house.

　　I heard soone singing in the next room.

　　5、动词做主语和表语时，动词要加ing(动名词)

　　Simming is very popular in sumr.

　　His job is teaching English. ，动词在以上六种情况需要加ing！

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