Negative verbs

We make negative verbs with auxiliary verb + not.

• We have not forgotten you.

• It was not raining.

In an informal style, we use contracted negatives with n't .

• We haven't forgotten you. It wasn't raining.
• If there is no auxiliary verb, we use do with not.
• I like the salad, but I don't like the soup.

In the colloquial speech “not” is usually added to the auxiliary, so the word combination “do + not” is transformed into “don’t”.

• Don’t forget to water flowers!
• He doesn’t play football at all.
• I don’t need you anymore.
• Kate doesn’t drink soda very often.

The auxiliary “to do” in Present + particle “not” + main form of the verb is used to form negative sentences in the Present Simple Tense.

• They do not go to the disco.
• Pete does not take drugs.
• My TV is broken and does not want to turn on.
• She does not like that sort of music.