that boy is swim in the river这句话对不对？

Question

如题所述

Answer 1

谓语部分有语法错误 ，进行时态不完整。

be 动词 is 后面的 swim 改为 swimming

现在分词形式，be + v.现在分词

That boy is swimming in the river.

译文：那个男孩正在河里游泳呢。

Answer 2

不对，swim改为swimming, be doing 正做某事。