(a) noun + -s : friends are important
noun + -es : i like my classes
A final -s or -es is added to a noun to make a noun plural friend = a singular noun friends a plural noun
(b) verb + -s : john works at the bank
verb + -es : she watches birds
A final -s or -es is added to a simple present verb when the subject is a singular noun or third person singular pronoun.
john works : singular the students work ; plural
he works : singular they work : plural
SPELLING : FINAL -s vs -es
(c) sing - sings
song - songs
For most words (whel,then a verb or a noun ),simply a final -s is added to spell the word correctly.
(d) wash - washed
watch - watched
class - classes
buzz - buzzes
box - boxes
Final -es is added to words that end in, -sh, -ch, -s, -z,and -x
(e) toy - toys
boy - boys
for word that end in -yin (e) : if -y is preceded by a vowel ,only -s is added
(f) baby - babies
cry - cries
in (f) : if -y is preceded by a consonant ,they -y is changed to -i and -es is added.