Is the plural of key and toy going to y plus ies?

Is the plural of key and toy going to y plus ies?

No, because the letter before - y is a vowel, so don't remove it
toy
[tCI]
n
toys

Which words ending in Y, plural is yes

If you add y to a consonant, you need to add y to ies, such as penny, try, fly

When does the third person singular end with "Y"

All verbs ending with a consonant letter plus the letter Y should go to y plus ies
study -- studies
try-- tries
If the verb is made up of one consonant and two vowels, add s directly at the end
stay -- stays
delay -- delays