What are the three forms of simple present tense?

There are actually only two forms of the simple present tense:

* Base Form: This is the form of the verb that you find in a dictionary. For example, "walk," "eat," "play."

* Third-person singular form: This form is used when the subject is a singular noun or pronoun that is third person (he, she, it). To form the third-person singular form, you add "-s" or "-es" to the base form. For example, "walks," "eats," "plays."

Let's look at an example:

* Base form: I walk to school every day.

* Third-person singular form: He walks to school every day.

The simple present tense does not have a separate form for the plural or first and second person.