Declension table of ?vipāna

Neuter	Singular	Dual	Plural
Nominative	vipānam	vipāne	vipānāni
Vocative	vipāna	vipāne	vipānāni
Accusative	vipānam	vipāne	vipānāni
Instrumental	vipānena	vipānābhyām	vipānaiḥ
Dative	vipānāya	vipānābhyām	vipānebhyaḥ
Ablative	vipānāt	vipānābhyām	vipānebhyaḥ
Genitive	vipānasya	vipānayoḥ	vipānānām
Locative	vipāne	vipānayoḥ	vipāneṣu

Compound vipāna -

Adverb -vipānam -vipānāt