quacks

From Wiktionary

Pronunciation[change]

Noun[change]

Singular
quack

Plural
quacks

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

Verb[change]

Plain form
quack

Third-person singular
quacks

Past tense
quacked

Past participle
quacked

Present participle
quacking

  1. The third-person singular form of quack.