This document discusses the present simple tense in English grammar. It states that in the affirmative form the subject is followed by the verb "to be" or a verb in its basic form plus any complement. In the negative form, the subject is followed by "do/does not" plus the verb in its basic form and complement. Questions are formed by placing the auxiliary verb before the subject.

1. PRESENT SIMPLE AFFIRMATIVE: Sub + Am, is, are + verb basic form + Complement EXAMPLES: - You work in a company - He drinks a lot of water

2. NEGATIVE Sub+aux do, does+not+verb(basic form)+complement

3. Question Aux do, does+sub+verb(basic form)+complement+?