Real Practice with Roots, Base Words, Prefixes & Suffixes

Real Practice with Base Words, Prefixes and Suffixes
    Real Practice with Base Words, Prefixes and Suffixes
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Do your students need extra practice using root or base words, prefixes and suffixes to create other words? Practicing with roots and base words is the beginning of understanding other grammar concepts such as prefixes, suffixes, and compound words. We've assembled plenty of information along with prefix and suffix worksheets with answers for all your students' needs.

Defining Base Words

A base word, unlike a true root, is a word in its own right that can be turned into other words with the addition of affixes. There are two main types of affixes: prefixes and suffixes. A prefix is a group of letters added to the beginning of a word. A suffix is a group of letters added to the end of a word.

Here are some examples of base words with prefixes and suffixes attached:

  • Care: cares, cared, caring, careless, careful, carefully
  • Decide: decides, decided, deciding, decisive, decision, indecisive, indecision
  • Excite: excites, excited, exciting, excitement, exciting, unexcited, unexciting, excitable
  • Friend: friends, befriend, befriended, befriends, friendly, unfriendly, friendless
  • Happy: happiness, happier, happiest, unhappy, unhappier, unhappiest, unhappiness
  • Love: loves, loved, loving, loveable, unloved, lovely, lovelier, loveliest
  • Suit: suits, suited, suitable, unsuitable, suiting, unsuited
  • Use: uses, used, usable, using, user, misuse, useless
Real Practice with Base Words, Prefixes and Suffixes
    Real Practice with Base Words, Prefixes and Suffixes
    Copyright YourDictionary, Owned by YourDictionary
    Created by Lindy Gaskill for YourDictionary

Practice Building on Base Words

To get some real practice with base words, here are two worksheets on adding or removing prefixes and suffixes to base words.

Add the Prefix Worksheet

Directions: Make new words combining the base word and one of the following prefixes. Each prefix is used twice. Scroll down to see the answers or download the printable prefix worksheet.

Prefixes: Anti; De; Dis; Im; Mis; Over; Non; Pre; Re; Un

  1. ___ behave
  2. ___ sense
  3. ___ possible
  4. ___ happy
  5. ___ fiction
  6. ___ place
  7. ___ prove
  8. ___ chief
  9. ___ healthy
  10. ___ move
  11. ___ place
  12. ___ code
  13. ___ vent
  14. ___ social
  15. ___ obey
  16. ___ act
  17. ___ septic
  18. ___ age
  19. ___ pend
  20. ___ serve
prefix practice worksheet for students

Prefix practice worksheet students

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Base Word and Suffix Worksheet

Directions: Each of the following words are made up of a base word with a suffix. Provide the correct base word without its added suffix. Scroll down to see the answers or download the printable suffix worksheet.

  1. Sunny __________
  2. Loving __________
  3. Noisy __________
  4. Pumping __________
  5. Candies __________
  6. Likeable __________
  7. Confusing __________
  8. Description __________
  9. Relaxation __________
  10. Spelled __________
  11. Preferred __________
  12. Commitment __________
  13. Confusion __________
  14. Explosion __________
  15. Education __________
  16. Discussion __________
  17. Admission __________
  18. Division __________
  19. Copying __________
  20. Imaginary __________
suffix practice worksheet for students

Suffix practice worksheet students

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Prefix Answers:

  1. Misbehave
  2. Nonsense
  3. Impossible
  4. Unhappy
  5. Nonfiction
  6. Replace
  7. Improve
  8. Mischief
  9. Unhealthy
  10. Remove
  11. Displace
  12. Decode
  13. Prevent
  14. Antisocial
  15. Disobey
  16. Overact
  17. Antiseptic
  18. Overage
  19. Depend
  20. Preserve

Suffix Answers:

  1. Sun
  2. Love
  3. Noise
  4. Pump
  5. Candy
  6. Like
  7. Confuse
  8. Describe
  9. Relax
  10. Spell
  11. Prefer
  12. Commit
  13. Confuse
  14. Explode
  15. Educate
  16. Discuss
  17. Admit
  18. Divide
  19. Copy
  20. Imagine

Online Practice With Base Words

Here are some sites where you can get more practice with base words.

  • Fun English Games provides great practice for all kinds of affixes. Play around with adding prefixes and suffixes to form new words.
  • QUIA has three games that give practice with bases and prefixes. The Matching game matches the prefix with its definition; in Concentration, you must match the prefix with its definition but remember where each one is located; and the Word Search puzzle is a puzzle using prefixes.
  • Word Shark is a downloadable game to help students with prefixes, suffixes, and bases. The goal is to find as many words as you can on the board within the time allotted.

All About That Base Word

Affixes are a fundamental part of English writing. Helping your students get to grips with them -- and how they relate to base words -- is vital. This sets them up for a deeper grasp of the English language. For more on the subject, check out our examples of prefixes and suffixes.