When forming the plural of singular words that end in the letter Y, the Y is removed and replaced by IE, followed by the S.
Examples : property / properties -- city / cities -- viscosity / viscosities
Some words end in ies because the singular form ends in y and yes might be harder to say at the end of the word than ies.
If Y follows e monkey monkeys
if Y follows a consonant ferry ferries
Words end in "ing" to show what you are currently doing. For example: I am running. ( it's something that I'm currently doing. Hope this helps.
Some plural nouns that end in -es or -ies are:baby, babiesberry, berriesbox, boxesbranch, branchesflash, flashesfox, foxesglass, glassesguess, guesseskiss, kissesmatch, matchesmiss, missespony, poniesquiz, quizzesshelf, shelvesstory, storieswaltz, waltzeswatch, watcheswish, wisheswolf, wolveswrench, wrenches
Vicinities, almost all plurals of words that end "y" is "ies".
lies, flies, lillies, monies,
pies
Many of them change to -ies for the plural.
spies ponies armies bullies babies
Some words that end in "ies" are babies, puppies, and hobbies.
drop the y and add ies
Words that drop the ending "y" and add "-ies" are those for which the penultimate letter of the word is a consonant. As the penultimate letter of keys is a vowel, the final consonant y is retained and an s is added at the end.
ski, chili, xi, chi, qi
Some examples of nouns that the plural form ends with -ies are:try, triesfry, friessupply, suppliesparty, partiespanty, pantiespatty, pattieslady, ladiesbaby, babiesworry, worriescherry, cherries
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