Changing y to ies / ied

You learn to change a consonant + y into i before adding suffixes like -es, -ed, or -er.

How to write it

If a word ends in a consonant followed by y, change the y to an i before adding -es, -ed, or -er.

A worked example

Two little ___ were sleeping in the cot. (baby + es)

  1. Baby ends in consonant b + y.
  2. Change y to i and add -es: b-a-b-i-e-s.
  3. You spell babies.
More examples

A swarm of honey ___ buzzed in the garden. (fly + es)

  1. Fly ends in consonant l + y.
  2. Change y to i and add -es: f-l-i-e-s.
  3. You spell flies.

She ___ her backpack to school yesterday. (carry + ed)

  1. Carry ends in consonant r + y.
  2. Change y to i and add -ed: c-a-r-r-i-e-d.
  3. You spell carried.

Try it yourself

  1. change y to ies

    The polite ___ sat down for afternoon tea.

  2. change y to i

    The iron kettle was the ___ thing in the kitchen.

Watch out

  • Changing y to i after a vowel, writing daies instead of days or boies instead of boys.

    Look at the letter right before the y. If it is a vowel (a, e, o), just add s: days, toys, monkeys.

Tips

  • Consonant + y: change y to i before -es and -ed.
  • Vowel + y: keep the y and add -s (play → plays).

Why it works

When a word ends in a consonant followed by y (baby, carry, happy), the y changes to i before a suffix (babies, carried, happier). After a vowel + y (day, boy), the y stays unchanged.