There are many boys are playing basketball.这句话有错吗?如果有错,错在哪?另

有错,把第二个are去掉,译为：有许多男孩在打篮球.
there be 句型表示一种存在,常译为“有”,如:
There are some books on the desk.
There is a picture on the wall.
另外,要遵循就近原则
eg.There is a boy and two girls in the classroom.
There are two girls and a boy in the classroom.
There will be/ There is going to be表示将有.

There are many boys playing basketball。 去掉后面的are。there be句型后面的动词用ing形式。表示正在做。。。

错了,therebe是存在的有,而这句是现在进行时,要把there are去掉
therebe最大的特点就是就近原则还有therebe里面没有am.is接单数,are接复数

有一句话中不能有两个谓语动词（本句中有两个are）可以改为There are many boys playing basketball.(are是谓语动词，playing为非谓语动词)
There be(is/are没有am)当后接可数名词时用are接不可数名词时用is