PLAY在什么情况下怎么用（play软件怎么用）

你这个问题比较含糊，不够具体应该是。play当谓语动词时，应根据时态和语态来决定用什么形式。如:play,played,played,plays等。playing是非谓语动词形式。-ing形式在句中可以当主语、宾语或其它句子成份。Playing football is one of my favorite outside class activities .I like /enjoy playing football.