Why is it that the to make the plural form of “hobby”, you change the “y” to “ies”? But to make the plural form of other words ending in “y”, like “toy”, you just add an “s”? Why do you add “es” to make “potato” plural? How about “loaf” and “loaves”? Is that just an exception?

If you don’t know, then this is phonics video for you!