The simple present tense is used to express habits, general truth instructions or direction, fixed arrangement, etc.
~ Verbal Sentences.
(+) S + V1 (-s/-es) + Object.
(-) S + do/does + not + V1 + Object.
(?) Do/does + S + V1 + Object + ?
~ Non Verbal Sentences.
(+) S + to be + noun / adjective / adverb.
(-) S + to be + not + noun / adjective / adverb.
(?) To be + S + noun / adjective / adverb + ?
Adverb of time:
Always Every
Never Often
Seldom Usually
Sometime Once / Twice etc
Examples:
(+) You are a teacher.
(-) You are not a teacher.
(?) Are you a teacher?
