We use the simple present tense when an action is happening right now, or when it happens regularly or unceasingly, which is why it's sometimes called present indefinite. Depending on the person, the simple present tense is formed by using the root form or by adding -s or -es to the end.
How to form simple present
In the simple present,most regular verbs use the root form, except in the third person singular(which ends in-s.)