Grammar Toolkit Words with missing letters are called contractions. They are mainly used in informal writing and when writing dialogue. What do these ones mean? I’veI have don’tdo not it’sit is isn’tis not that’sthat is won’twill not shouldn’tshould not we’vewe have who’swho is he’llhe will or he shall they’dthey had or they would ’90s1990s An apostrophe can also show that numbers are missing.
