Your current location:

Unit 9: Adding suffixes: the spelling rules

Page 12 of 19

Unit 9: Suffixes: why we need to double letters, change them or drop 'e'

Unit StartCourse Testpage 2page 3Course Testpage 5Course Testpage 7Course Testpage 9Course Testpage 11Course Testpage 13Course Testpage 15Course Testpage 17Course Testpage 19Unit End

Page 12 of 19

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:

You have not completed Learn the Words activities for the word list on this page.

next part of the spelling course
Take a test in these words.

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.

"This is a fantastic opportunity for our students!  I'm sure Spellzone will be invaluable in helping them to improve their spellings and therefore improve the quality of their writing in all subject areas!"

Teacher, High School, UK