A suffix is added to the end of a word to make the word brand new
A suffix is added to the end of a word because that's just what they do
When you add 'ed' to the end of a verb it makes the word past tense
A consonant before a 'y' turns to an 'I, then add 'ed' to the end
Cry becomes cried
Dry becomes dried
Fry becomes fried
Try becomes tried
Keep going, you can do this
When you add 'ed' to the end of verb it makes the word past tense
Look for a vowel before the 'y' then add 'ed' to the end
Pray becomes prayed
Enjoy becomes enjoyed
Spray becomes sprayed
Employ becomes employed
That's how you add 'ed' and 'ied' to the end of a word