Declension table of ?vipaṇana

Neuter	Singular	Dual	Plural
Nominative	vipaṇanam	vipaṇane	vipaṇanāni
Vocative	vipaṇana	vipaṇane	vipaṇanāni
Accusative	vipaṇanam	vipaṇane	vipaṇanāni
Instrumental	vipaṇanena	vipaṇanābhyām	vipaṇanaiḥ
Dative	vipaṇanāya	vipaṇanābhyām	vipaṇanebhyaḥ
Ablative	vipaṇanāt	vipaṇanābhyām	vipaṇanebhyaḥ
Genitive	vipaṇanasya	vipaṇanayoḥ	vipaṇanānām
Locative	vipaṇane	vipaṇanayoḥ	vipaṇaneṣu

Compound vipaṇana -

Adverb -vipaṇanam -vipaṇanāt