Verb + s/es
Incorrect : He speak English very fluently.
Correct : He speaks English very fluently.
Incorrect : Alan go to school regularly.
Correct : Alan goes to school regularly.
Note: In the simple aspect of the present tense, the action verb takes 's/es’ inflection, when the subject is a noun or pronoun in the third person and singular number. In this case, the 's/es’ of the verb should not be left out.
