KS2 English textbook

Chapter 3: Prefixes, suffixes and word families

  • Strand Spelling and grammar
  • Level Year 4
  • Practice 91 questions with step-by-step solutions

National Curriculum for England, Key Stage 2 English, Year 4. Content: Read new words by their root word, prefix and suffix, and use the terms prefix, suffix, word family and root word, Add the prefixes dis-, mis-, re- and in- (with im-, il- and ir-), and say what each one does to the meaning, Add the prefixes sub-, inter-, super-, anti- and auto-, and spell nouns formed with super-, anti- and auto-, Add the suffixes -ation, -ly and -ous to root words, with the spelling changes that each one needs, Spell the endings -sure, -ture, -tion, -sion, -ssion and -cian, Add vowel suffixes to words of more than one syllable, using the doubling rule where it applies, and recognise word families.

Open Year 4 chapter

By the end of this chapter you will be able to

  • Say what a root word, a prefix, a suffix and a word family are, and use them to work out a new word
  • Spell words with the negative and reversing prefixes dis-, mis-, re- and in-, and change in- to im-, il- or ir- where needed
  • Spell words with sub-, inter-, super-, anti- and auto-, and name the noun that some of them make
  • Spell words with -ation, -ly and -ous, and make the right change to the root word first
  • Spell words with -sure, -ture, -tion, -sion, -ssion and -cian
  • Double the last letter before a vowel suffix only when the stress is on the end of the root word

You should already know

  • Prefixes and suffixes such as un-, re- and -ful, and the endings -less and -ness (Year 3, Chapter 2)
  • The statutory word list and the dictionary (Chapter 2 of this book)

Where this leads

  • Plurals and possession (Chapter 4)
  • Fronted adverbials, which often use -ly adverbs (Chapter 6)

Lessons in this chapter

  1. 3.1 Root words, prefixes, suffixes and word families
  2. 3.2 Negative and reversing prefixes: dis-, mis-, re- and in-
  3. 3.3 Prefixes sub-, inter-, super-, anti- and auto-
  4. 3.4 The suffixes -ation and -ly
  5. 3.5 The suffixes -ous, -sure, -ture and the endings -tion, -sion, -ssion and -cian
  6. 3.6 Adding vowel suffixes, the doubling rule and word families
  7. Summary and key words
  8. Check-up and practice test questions

Read the whole chapter on one page (good for printing).

Practise with real exam questions

The DfE publishes every past KS2 test, with mark schemes, for free.

KS2 English past papers