This is the 1128th most frequent Korean word.
돕는
Helping.
In this sentence, "돕는" is used as an adjective to describe a person that helps, directly modifying the noun "사람이" (person).
그는 돕는 사람이 많아요.
He has many helping people.
Here, "돕는" acts as an adjective describing the act of helping, which is the subject of the sentence.
도움을 돕는 일이 쉽지 않아요.
The act of helping help is not easy.
"돕는" is used as a gerund phrase complement to the verb "좋아해요" (to like), implying the act of helping as the object of liking.