Declension table of ?cupamāna

Neuter	Singular	Dual	Plural
Nominative	cupamānam	cupamāne	cupamānāni
Vocative	cupamāna	cupamāne	cupamānāni
Accusative	cupamānam	cupamāne	cupamānāni
Instrumental	cupamānena	cupamānābhyām	cupamānaiḥ
Dative	cupamānāya	cupamānābhyām	cupamānebhyaḥ
Ablative	cupamānāt	cupamānābhyām	cupamānebhyaḥ
Genitive	cupamānasya	cupamānayoḥ	cupamānānām
Locative	cupamāne	cupamānayoḥ	cupamāneṣu

Compound cupamāna -

Adverb -cupamānam -cupamānāt