Words Ending in -y and -ie
A2 · ElementarySpelling RulesStudy → studied, play → played, die → dying — the letter before the y (and a rule against double i) decides.
What you'll learn
- A word ending in a consonant + y usually changes y to i before most suffixes: study → studied, happy → happier
- The y does NOT change before -ing, because English avoids putting two i's in a row: study → studying, not 'studiing'
- A word ending in a vowel + y usually keeps the y unchanged: play → played, enjoy → enjoyed
- A word ending in -ie changes ie to y before -ing: die → dying, lie → lying, tie → tying
Consonant + y vs. vowel + y
The letter right before the final y decides what happens. A consonant before y usually triggers a change to i; a vowel before y usually means no change at all.
The exception: never before -ing
Even when a word's y would normally change to i, it stays as y before -ing. This is because English spelling avoids writing two i's next to each other.
Words ending in -ie: switch to y before -ing
A small group of common words end in -ie. Before -ing, they swap the ie for a y, for the same reason as above — avoiding an awkward double vowel sequence.
Real English
Watch out
y never changes to i before -ing, even for consonant + y words — the double-i spelling (studiing) is always avoided.
'enjoy' ends in a vowel + y, so the y doesn't change before -ed — 'enjoied' incorrectly applies the consonant + y rule.
Real life — Talking about exam preparation
"How's your studying going? Are you enjoying the course at least?"
"Honestly, I'm trying, but I'm worried I'm not covering everything."
"You've carried a heavy workload this semester, though. Give yourself credit."
"Thanks — I'll keep trying and see how it goes."
Practice
Exercise 1 · Choose the correct spelling
Choose the correct -ed form: study → ___ (consonant + y)
Exercise 2 · Choose the correct spelling
Choose the correct -ing form: study → ___
Exercise 3 · Choose the correct spelling
Choose the correct -ed form: play → ___ (vowel + y)
Exercise 4 · Choose the correct spelling
Choose the correct -er form: happy → ___
Exercise 5 · Choose the correct spelling
Choose the correct -ing form: die → ___
Exercise 6 · Choose the correct spelling
Choose the correct -ing form: lie → ___
Exercise 7 · Choose the correct answer
Why does 'try' become 'trying' (not 'triing') with -ing?
Exercise 8 · Choose the correct spelling
Choose the correct plural form: city → ___
Exercise 9 · Add the correct ending
Add -ed correctly (consonant + y): carry → ___
Exercise 10 · Add the correct ending
Add -ing correctly (keep y before -ing): carry → ___
Exercise 11 · Sort the words into groups
0 / 8 sorted
Quick challenge
Five quick questions to check what stuck.
Question 1 / 5
Score: 0/0
Choose the correct -ed form: worry → ___
You learned
- Consonant + y usually changes to i before a suffix: study → studied.
- y never changes before -ing, to avoid a double-i spelling: study → studying.
- Vowel + y usually stays unchanged: play → played.
- Words ending in -ie switch to y before -ing: die → dying, lie → lying, tie → tying.
Related grammar lessons
Words Ending in -e
Learn when to drop a word's silent final -e before adding a suffix, and when to keep it — drop before a vowel suffix like -ing, keep before a consonant suffix like -ly — plus the small set of exceptions that keep the -e to avoid confusion or preserve pronunciation.
Doubling Consonants
Learn the rule for doubling a word's final consonant before adding -ed, -ing, -er, or -est — the 'one vowel, one consonant' pattern for short words, and the stress-based version of the same rule for longer words.
British vs American Spelling
Learn the systematic spelling differences between British and American English — -our/-or, -re/-er, -ise/-ize, -ogue/-og, and doubling before a suffix — and why picking one system and staying consistent matters more than which one you choose.
Adding -s, -ed and -ing
An overview of why English spelling shifts when you add -s, -ed, or -ing to a word — the general idea that spelling changes exist to protect pronunciation — with the specific rules (doubling, dropping -e, changing y to i) each getting their own dedicated lesson.