Training your dog
It is very important to train your dog. It keeps your dog’s mind active, and it help to build an understanding between you and your dog. Often, owners will shout at their dogs or even punish them when what is needed is training.
The error in grammar: it help
Correct verb form: it helps
In the simple present tense, third-person singular pronouns, like she, he and it, use conjugated verbs formed by the base form of a verb and the affix -s, -es, or -ies. For example: helps, thinks, cries, watches. In the excerpt provided, the error is in the verb help because it is not correctly conjugated for the pronoun it: it is missing an s at the end.