什么时候用in什么时候用ing_什么时候用in什么时候用ing

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林巧稚与动词 -ing形式完成式的用法Though Lin Qiaozhi never married,she was known as the “mother of ten thousand babies”,having delivered over 50,000 babies in her lifetime... finished the letter, he folded it and put it into the envelope. 写完信后,他把信折起来装进了信封。(时间状语) #林巧稚 #英语语法 #动词-ing形式 #...

●▂● 动词-ing形式的完成式用法实例解析having delivered.是动词­ing形式的完成形式,在句中作状语。 (2)动词­ing 形式的完成式主要表示发生在谓语动作之前的动作,常用作状语,一般... 接受你的邀请。(原因状语) Having finished the letter, he folded it and put it into the envelope. 写完信后,他把信折起来装进了信封。(时间状语)

involve的用法解析代词或动名词(即 -ing形式的动词),以此表示涉及或包含某种活动、过程或事物。例如: The war involved a great increase in the national debt.那场... For a long time Gabriel didn't want to be involved in music at all.很长一段时间,加布里埃尔根本对音乐没有兴趣。(…根本不注重学习音乐。)(20...