Word Forms of "questionnaire" (5 forms)

Noun

Form	Word
Plural	questionnaires

Pluralquestionnaires

Verb

Form	Word
Participle, Past	questionnaired
Participle, Present	questionnairing
Past	questionnaired
Present, Singular, Third-Person	questionnaires

Participle, Pastquestionnaired

Participle, Presentquestionnairing

Pastquestionnaired

Present, Singular, Third-Personquestionnaires

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.