The most common rule for forming plural nouns is
Achanging the y to i and adding -es.
Badding -s to the word.
Cdropping the last letter and adding -ies.
Dadding -es to the word.
Achanging the y to i and adding -es.
Badding -s to the word.
Cdropping the last letter and adding -ies.
Dadding -es to the word.
