Word formation keys.

Word formation keys.

Prefixes.

Ex. 1.1. co-pilot; 2. intercontinental; 3. co-operating; 4. ex-husband. 5. international; 6. inter-city; 7. ex-servicemen; 8. co-educational; 9. ex-soldier; 10. coexistence

Ex. 4.1. postgraduate; 2. non-stop; 3. monosyllables; 4. nonsense; 5. post-war; 6. monorail; 7. antifreeze; 8. anti-marriage; 9. non-members; 10. antisocial.

Ex. 4.1. encourage; 2. enables; 3. enclosed; 4. enriches; 5. enlisted; 6. enlarge; 7. enroll; 8. encountered; 9. endanger; 10. enforce; 11. imprisoned;

12. implanted; 13. imprinted

Ex. 10.1. reappeared; 2. rearrange; 3. reassure; 4. rebuilt; 5. recall; 6. recollect; 7. reconstruct; 8. recover; 9. recycle; 10. remove; 11. replace; 12. reprint; 13. rewrite; 14. rewind; 15. reworked; 16. re-elected; 17. Reproduced

Adjectives and nouns.

Ex. 2. 1. advisable; 2. changeable; 3. regrettable; 4. suitable; 5. dependable; 6. breakable; 7. readable; 8. adjustable; 9. enjoyable; 10. eatable; 11. agreeable; 12. curable; 13. acceptable; 14. admirable; 15. comparable; 16. considerable; 17. desirable; 18. fashionable; 19. hospitable; 20. irritable; 21. manageable; 22. memorable; 23. noticeable;24. preferable; 25. profitable; 26. reasonable; 27. recognizable; 28. remarkable; 29. understandable; 30. valuable.

Ex. 3.1. audible; 2. credible; 3. terrible; 4. possible; 5. compatible; 6. accessible; 7. comprehensible; 8. edible; 9. flexible; 10. horrible; 11. sensible; 12. visible; 13. convertible; 14. responsible; 15. digestible

Ex. 5. 1. aggressive; 2. alternative; 3. constructive; 4. defensive; 5. offensive; 6. destructive; 7. productive; 8. decisive; 9. competitive; 10. attractive; 11. appreciative; 12. deceptive; 13. informative; 14. creative; 15. flexible, imaginative; 16. talkative; 17. protective; 18. competitive; 19. extensive

Ex. 13.1. rainy; 2. grassy; 3. friendly; 4. salty; 5. ghostly; 6. yearly;7. weekly; 8. bushy; 9. dusty; 10. muddy; 11. smoky; 12. thirsty; 13. worthy;14. snowy; 15. costly; 16. cowardly; 17. brotherly; 18. scholarly

Ex. 15. 1. accidental; 2. additional; 3. educational; 4. residential; 5. occasional; 6. environmental; 7. intellectual; 8. sensational; 9. global; 10. vocational

Ex. 1.1. devotion; 2. decision; 3. solution; 4. persuasion; 5. interpretation; 6. objection; 7. description; 8. revision; 9. permission; 10. extension; 11. prescription; 12. conclusion; 13. creation; 14. reduction; 15. reception; 16. intention; 17. obligation; 18. explosion

Ex. 3. 1. achievement; 2. acknowledgement; 3. armament; 4.announcement,5. argument; 6. commitment; 7. employment; 8. treatment; improvement;9. investment; 10.payment; 11. punishment; 12. replacement; 13. requirement; 14. settlement; 15. Supplement

Negative prefixes.

Ex. 7. 1. disagree; 2. disappoint; 3. disapprove; 4. disbelieves; 5. disarm; 6. disconnected; 7. disobey; 8. discount; 9. discolour; 10. discover;11. disembarked; 12. disinherit; 13. dislike; 14. dismiss; 15. display; 16. disqualified; 17. dissolved; 18. disunite; 19. displeased; 20. dissatisfied; 21.deforested; 22. depopulated; 23. defrost

Ex. 8. 1. miscalculated; 2. unpack; 3. uncover; 4. misdirected; 5. misheard; 6. undo; 7. misled; 8. misinform; 9. misinterpreted; 10. unfasten; 11. undress; 11. misplace; 13. mispronounce; 14. unfolded; 15. unlock; 16. misjudged; 17. misread; 18. mistake, 19. undo; 20. mistrusted; 21. misfires

Ex.,20.1. illegal; 2. illiterate; 3. illogical; 4. immature; 5. immobile; 6. immodest; 7. immortal; 8. immoral; 9. impatient; 10. imperfect; 11. impolite; 12. impractical; 13. irrelevant; 14. irresistible; 15. irresponsible

Ex. 21. 1. inaccurate; 2. inactive; 3. inattentive; 4. inaudible; 5. incompetent; 6. inconsiderate; 7. inconvenient; 8. incorrect; 9. incredible; 10. incurable; 11. indecent; 12. indecisive; 13. indefinite; 14. ineffective; 15. inexpensive; 16. inflammable; 17. informal; 18. inseparable; 19. insincere; 20. invisible

Ex. 22. 1. irresistible; 2. impossible; 3. illegal; 4. inaccurate; 5. immature; 6. immoral; 7. inconvenient; 8. illogical; 9. irresponsible; 10. impatient; 11. insecure; 12. irrelevant; 13. impolite; 14. illiterate; 15. infrequent; 16. illegible; 17. incurable; 18. irregular; 19. independent; 20. informal; 21. irreplaceable; 22. inexpensive; 23. indifferent

Ex. 23.1. unacceptable; 2. unaware; 3. unbearable; 4. unbelievable; 5. uncertain; 6. unclear; 7. uncomfortable; 8. uncommon; 9. unconscious; 10. uncooperative; 11. uncountable; 12. unequal; 13. unlucky; 14. uneasy;15. unnecessary; 16. unpredictable; 17. unattractive; 18. unfair; 19. unfamiliar;20. unfashionable; 21. unfit; 22. unrealistic; 23. unpopular; 24. unreliable;25. unsatisfactory

Ex. 24.1. illegal; 2. incorrect; 3. inaccurate; 4. improper; 5. inappropriate;6. immoral; 7. incapable; 8. impatient; 9. imperfect; 10. impolite;11. inconvenient; 12. incompetent; 13. incomplete, inaccurate; 14. impractical;15. improbable; 16. unreasonable; 17. immeasurable

Ex. 4.1. postgraduate; 2. non-stop; 3. monosyllables; 4. nonsense; 5. post-war; 6. monorail; 7. antifreeze; 8. anti-marriage; 9. non-members; 10. antisocial.

Ex. 17. 1. disadvantage; 2. disagreement; 3. disappointment; 4. disapproval; 5. disbelief; 6. discomfort; 7. disgrace; 8. disorder; 9. disrespect; 10. dissatisfaction; 11. misfortune; 12. misprint; 13. mistrust;14. misunderstanding; 15. inability; 16. inaccuracies; 17. inattention;18. incompetence; 19. inconvenience; 20. inequality; 21. injustice; 22. insincerity; 23. inexperience