Noun change

Singular
kitten

Plural
kittens

 
Newborn kittens
  1. The plural form of kitten; more than one (kind of) kitten.
    My cat had 4 kittens last week.

Verb change

Plain form
kitten

Third-person singular
kittens

Past tense
kittened

Past participle
kittened

Present participle
kittening

  1. The third-person singular form of kitten.