The Spelling Rules for Adding Suffixes:

When do you change the letter y ?
When does the y stay the same ?

Teaching point - learning to spell Sometimes you need to change the letter y.

All these words end in y. The y here is used as a vowel:

cry copy crazy beauty silly

When adding a suffix to a word ending y, we usually change the y to i:

word lists word lists
cry + ed = cried copy + er = copier crazy + est = craziest

beauty + ful = beautiful

silly + ness = silliness
word lists word lists

If the suffix is s, we change the y to i and then add es:

word lists word lists
cry + s = cries copy + s = copies party + s = parties
word lists word lists

Learn the Words:
Study this word list 'Look, Say, Cover, Write, Check' spelling exercise English spelling games spelling test

Let’s get you used to changing the y. Have a go with these words:

Add the suffix to the root word.

Type the whole word:

fry + ed
dirty + er
curry + s
marry + ed
funny + est
lazy + ness
plenty + ful
try + s
easy + ly
supply + ed
happy + er
pretty + est

Skip this exercise and go to the next part of this unit: Rule-breakers for y words. *

* Skip link not available for logged in students.

Please turn your screen to landscape to play this game.

The Spellzone interactive course is intended to be used online and may not be printed.

Sign up to remove this advert

Your current location:

Unit 9: Adding suffixes: the spelling rules

Page 12 of 19

Try Spellzone for free


Sign up to remove this advert

"Spellzone fits in beautifully with our Scope and Sequence of Phonological Awareness and Spelling. It also aligns perfectly with the four areas of spelling knowledge and uses the Brain, Ears, Eyes approach to learning spelling."
Thank you!

Teacher, Australia