Noun change

Singular
understudy

Plural
understudies

  1. The plural form of understudy; more than one (kind of) understudy.

Verb change

Plain form
understudy

Third-person singular
understudies

Past tense
understudied

Past participle
understudied

Present participle
understudying

  1. The third-person singular form of understudy.