-s

(The form -es is also used. The suffix -s is pronounced [[t]-s[/t]] after the consonant sounds [[t]p, t, k, f[/t]] or [[t]θ[/t]]. After other sounds -s is pronounced [[t]-z[/t]]. The suffix -es is pronounced [[t]-z[/t]] after vowel sounds, and [[t]-ɪz[/t]] after consonant sounds.)

1) SUFFIX -s or -es is added to a noun to form a plural.

...her two beloved cats.

...a few problems.

...new houses and flats...

Most bosses are traditional.

2) SUFFIX -s or -es is added to a verb to form the third person singular, present tense.

He never thinks about it...

She likes her job...

No-one wishes to see that.