What are the rules for adding s adding es and adding ies to a singular word?

When making a Word plural generally you should add an 's' (e.g., play, chair, and balloon become plays, chairs, and balloons). However, if the Word in question ends in a consonant+y then the y is eliminated and replaced with ies (party, study, and pantry become parties, studies, and pantries). If the Word in question ends in an s, x, ch, or sh then 'es' is added instead of just an 's' (e.g., dress, box, match, and wash become dresses, boxes, matches, and washes).

The same rule applies when adding 's' for the third person (e.g, He dresses himself, she boxes for a living, he matches socks, and she washes clothes).