Simple Present Tense is used for the incidents that have been occurring at the moment or are happening routinely over some time.
Please note that there are no changes made to the actual verb form while using the Simple Present Tense except when a third person is being talked about, in which case suffix – s or -es are added to the verb. For example, go through the following sentences-
The first four sentences state an incident which is occurring regularly and there is no change in the actual form of the verb. i.e. listen, eat, get and go remained in their original forms. In the next three sentences since a third person is being talked about; therefore, the verb is suffixed with -s or -es i.e. goes, listens and visits.