Under what circumstances does English add s

1, the tense is the simple present tense, the subject is the third person singular sentence, and the verb generally adds S; When this word ends with o, s, x, sh, ch, add es.

2. Nouns become plural:

A, usually add s; When the word ends with s, x, sh and ch, add es, but the plural form of stomach is bottoms.

B. nouns ending in o

(1) usually add es: such as hero.

(2) But some special nouns only add S: for example, piano photos.

(3) Some nouns can be added with es or s: for example, the number zero zero.