In English we have a few prefixes with a meaning of NO, NON or OPPOSITE. Last time we learned about the prefix DIS so today let’s look at some more prefixes with a similar meaning.
IN/IM
“My boss was angry because my assignment was incomplete.” = not complete
“Jerry can’t finish that report by Friday! That’s impossible!” = not possible
both of these words are adjectives
IL/IR
“Riding a motorcycle on the sidewalk is illegal. I know, I tried it last weekend!” = not legal
“Most verbs in English become past tense when you add ‘ED’ but some verbs are irregular.” = not regular
both of these words are adjectives
DE
A: “Can we have steak for dinner tomorrow night?”
B: “Sure, there are 2 steaks in the freezer. I’ll put them in the fridge to defrost them tonight.” = to become or make something warmer – defrost is a verb
UN
“Mister Donut in Tokyo has unlimited refills on coffee! I can drink as much as I want!” = no limit
unlimted is an adjective