I和often play ball之间要不要加be动词am那he often 是怎么回事那I 和often in blue呢

I和often play ball之间要不要加be动词am那he often 是怎么回事那I 和often in blue呢 kick the ball 和 play the ball I would like to play ball.play和like在这里是不是都是非谓语动词 but what i won't do is play ball.为什么is和play同时出现.play是系动词? I like play with my ball 选择题Sometimes I play 什么 foot-ball I like to play my ball.(改错) They often play ball games ___school.空格里应填啥介词? he often ()with a ball.(play plays playing) I often watch my cat ____ with a ball A.play B.plays C.to play D.playing 选什么.给理由. play ball I often play the piano. we often play g__in the park 这里该填什么?PLAY 和 IN THE PARK 之间要填一个 G开头的单词 I often play at our school center.Yes,it's my ball.yes,this e-book is more difficult than that one.问句 我想知道be动词和助动词do用法上的区别I play ball 和 I am play ball这两句话有什么区别?I am play ball这句话是正确的吗?I didn't answer the phone可以换成I wasn't answer the phone吗?这两句话有什么区别?呃 写 I play badminton with my ball .怎么填 let‘s play ball .I have to walk my beat my cat and I play a ball什么意思