The word not can be joined to a verb to form a contraction.
A contraction is a shortened form of a group of words.
An apostrophe takes the place of the missing letter or letters.
Some contractions are shown in the box .
Verb +Not Contraction Verb + Not Contraction are + not aren’t should + not shouldn’t could + not couldn’t was + not wasn’t did + not didn’t were + not weren’t do + not don’t will + not won’t is + not isn’t would + not wouldn’t