islcollective worksheets preintermediate a2 intermediate b1 upperintermediate b2 adults students with special educationa 142209339154625ce4a4e691 13352804

dis-, in-, im-, re-, un- are the most common prefixes of the English language.
dis- means not or opposite of
in- & im- mean in
re- means again
un- means not
PS.: UN- can go before any letters. IM is used before letters m and p –other than that IN is
used.

Write the right prefix on the lines:
_____able

_____confortable

_____certain

_____like

_____happy

_____secure

_____invited

_____open

_____ adjust _____known

_____assure

_____habit

_____connect

_____ability _____agree

_____like

_____trust

_____turn

_____fresh

_____polite

_____possible

_____guise

_____formal _____patient

_____store

Now use some of the words in the sentences:
1. The birthday party was very __________. 2. Boy, was he _________ when he asked for
help! 3. The plants that grow here are very __________ the plants where I live. 4. He was
__________ to solve the problem. 5. Everybody wants him to __________ to his job. 6. I
feel shy and __________ around strangers. 7. He tried to __________ his voice on the
phone but I could tell it was him. 8. People have grown __________ with the numerous
delays. 9. Now you must __________ the hose from the faucet. 10. You look __________
in that chair. Do you want another one? 11. I am sorry but the restaurant is closed. We will

__________ tonight at 9 pm. 12. Several species of birds _________ the island. 13. I am
not sure of the address. Could you __________ your memory? 14. Much is _________
about his early life in America. 15. We don’t look eye to eye on the matter. Actually we
________ very much. 16. Mary has learned to keep a positive attitude about her
__________. 17. The crew is trying to __________ the old house to its original condition.
18. The heavy rain made it ____________ to see the dark road. 19. I was annoyed that he
brought three ____________ guests to my party. 20. It is a very ___________ situation.
I wish I could do something to change it. 21. The children need to ___________ to the new
school. 22. They generally __________ dentists and doctors.


Key for the third task:
1. informal
2. impolite
3. unlike
4. unable
5. return
6. insecure
7. disguise
8. impatient
9. disconnect
10. uncomfortable
11. reopen
12. inhabit
13. refresh
14. unknown
15. disagree
16. disability
17. restore
18. impossible

19. uninvited
20. unhappy
21. readjust
22. distrust