Simple Present Tense

Active Formulas:

S + V1(s/es) + O
Eg: He writes a letter.

He,She,It , Third Person Singular: Verb with s or es

Negative: S + do + not + V1(s/es) + O
eg: I do not write a letter.
eg: He does not write a letter.

Question: Do (Not) + S + V1 (s/es) + O
eg: Do i write a letter?
eg: Does he write a letter?
eg: Does he not write a letter?

Passive Formulas:

O + (is/am/are) + V3 + (By s)
Eg: A letter is written by me.
Eg: The car bill is paid.