MAKING QUESTIONS & NEGATIVE SENTENCES

First, find the verb in the sentence.

If the verb is "to be" (am, is, are, was, were) or if the verb is a modal verb (can, could, shall, should, may, might, will, would, must),
you only need to --
-- add "not" after the verb to make a negative sentence.
-- change the place of the subject and the verb to make a question... and add a question mark.

If the verb is in present perfect or past perfect (have + p.p., has + p.p., or had + p.p.),
you only need to --
-- add "not" after the verb to make a negative sentence.
-- change the place of the subject and the verb to make a question... and add a question mark.

If the verb is any other verb (not "to be," not modal, not present perfect tense, and not past perfect tense), you need to use the verb "to do" in the same tense as the verb in the sentence + the simple form of the verb (infinitive without "to") to make an emphatic sentence.  Once you make the emphatic sentence, you only need to --
-- add "not" after the verb "to do" to make a negative sentence.
-- change the place of the subject and the verb "to do" to make a question... and add a question mark.