比如说I am playing football. 和I playing fottball .哪个对 为什么

比如说I am playing football. 和I playing fottball .哪个对 为什么 I am playing football （对 playing football 提问） I am（）.playing football playing the football play football I'm playing football.对playing football提问 怎么写? i am always playing 和 i always am playing那个对 I like playing football.对playingfootball提问 I am fond of playing football的同义句 I — — — playing football 空 I am playing football.中playing football是作表语么? I'am playing for I am playing football (in the playground.)对括号里提问 I am playing football with my friend用了playi I am stopping playing football in future.这句话对么?