It is helping the verb " watch" along with the present participle ending –ing to become the present progressive tense.

它辅助动词“watch”和现在分词结尾“-ing”一起构成现在进行时。

It is helping the verb " watch" along with the present participle ending -ing to become the present progressive tense.

它帮助动词watch和现在分词结尾-ing一起构成现在进行时。

This verb is often used – usually used as a present progressive tense, or a progressive tense, the " -ing" : " he was sporting, " " he is sporting, " " he will be sporting."

这个动词经常被使用——通常用作现在进行时，或进行时，“-ing” ：“he was sporting” ，“he is sporting” ，“he will be sporting” 。