Chapter 1: Suffixes: -cious, -tial, -ant, -able and -ation

By the end of this chapter you will be able to

• Use the root word to decide between -cious and -tious
• Choose between -cial and -tial by looking at the root word
• Choose between -ant, -ance and -ancy, and between -ent, -ence and -ency
• Drop or keep the e before -able, and use -ible for shorter root words
• Form adverbs ending -ably and -ibly from adjectives ending -able and -ible
• Change an -e or -ate ending to -ation

You should already know

• Adding suffixes to words, including dropping the e (Year 4, Chapter 3)
• Finding the root word and using it to spell related words (Year 4, Chapter 3)

Where this leads

• Prefixes with their meanings, and using a dictionary to check (Chapter 2 of this book)
• The Year 5-6 word list, silent letters and the thesaurus (Chapter 3 of this book)