The Simple Present Tense can be expressed in the affirmative, negative and the interrogative forms.
(I) An Affirmative in the Simple Present Tense is formed by beginning the sentence with a subject (noun or pronoun), following by a verb and end with an object.
(II) A Negative in the Simple Present Tense is formed by begging with the subject, following by adding does not/ doesn’t (for singular subject) or do not/ don’t (for plural subject) before the base verb.
(III) An Interrogative in the Simple Present Tense is formed by putting the verb DO or Does at the beginning of the sentence, follwing by a Base Verb after the subject to form a Yes/ No question.
put a wh- question word at the beginning of a Yes/ No question to form a wh- question.
Look at these examples:
- Dr. Martin goes to his office at 8.30 a.m. every day
- Dr. Martin does not go to work on Friday.
III. Interrogative (Yes/ No Question):
- Does Dr. Martin work on Friday?
Interrogative (wh- Question) :
- When does Dr. Martin work?