How do you know when to use y ey ie at the end of a word?

You're asking about the tricky "y" at the end of words! Here's the breakdown:

The General Rule: Change "y" to "i" before adding "-es" or "-ed" if the "y" is preceded by a consonant.

Examples:

* cry + es = cries

* try + ed = tried

* study + ing = studying

* happy + er = happier

Exceptions:

* If the "y" is preceded by a vowel, keep the "y" and just add "-s" or "-ed".

Examples:

* boy + s = boys

* play + ed = played

* monkey + s = monkeys

Special Cases:

* "ie" is used after a "c" to make a "sh" sound.

Examples:

* sacrifice + ing = sacrificing

* notice + able = noticeable

* "ey" is generally used for words that end in "y" but the "y" is not the final letter.

Examples:

* money

* monkey

* turkey

Key Tips:

* Look at the letter before the "y". Is it a vowel (a, e, i, o, u) or a consonant?

* If it's a consonant, change the "y" to "i".

* If it's a vowel, keep the "y".

Practice Makes Perfect: The best way to learn these rules is to practice! Try applying them to different words, and you'll get the hang of it.