Word Forms of "costain" (5 forms)

Proper Noun

Form	Word
Plural	Costains

PluralCostains

Verb

Form	Word
Participle, Past	costained
Participle, Present	costaining
Past	costained
Present, Singular, Third-Person	costains

Participle, Pastcostained

Participle, Presentcostaining

Pastcostained

Present, Singular, Third-Personcostains

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