Words ending in y preceded by a consonant, change the y to i and add es . Words ending in y preceded by a vowel add s .
Some nouns have irregular plurals.
Sometimes the silent e must be retained to keep the preceding vowel long. The silent e may be dropped if there is no consonant between it and the vowel. Using cede, ceed or sede. All other words use cede. 10 Tips for Correct Spelling 'See' words as well as hear them.