Word Forms of "diphthongize" (5 forms)

Verb

Form	Word
Alternative	diphthongise
Participle, Past	diphthongized
Participle, Present	diphthongizing
Past	diphthongized
Present, Singular, Third-Person	diphthongizes

Alternativediphthongise

Participle, Pastdiphthongized

Participle, Presentdiphthongizing

Pastdiphthongized

Present, Singular, Third-Persondiphthongizes

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