【什么時候要用playing 什么時候要用助動詞do】1、playing是非謂語動詞形式 。-ing形式在句中可以當主語、賓語或其它句子成份 。
2、Playing football is one of my favorite outside class activities.
3、I like /enjoy playing football.
【什么時候要用playing 什么時候要用助動詞do】1、playing是非謂語動詞形式 。-ing形式在句中可以當主語、賓語或其它句子成份 。
2、Playing football is one of my favorite outside class activities.
3、I like /enjoy playing football.
