Declension table of ?pratyupamāna

Neuter	Singular	Dual	Plural
Nominative	pratyupamānam	pratyupamāne	pratyupamānāni
Vocative	pratyupamāna	pratyupamāne	pratyupamānāni
Accusative	pratyupamānam	pratyupamāne	pratyupamānāni
Instrumental	pratyupamānena	pratyupamānābhyām	pratyupamānaiḥ
Dative	pratyupamānāya	pratyupamānābhyām	pratyupamānebhyaḥ
Ablative	pratyupamānāt	pratyupamānābhyām	pratyupamānebhyaḥ
Genitive	pratyupamānasya	pratyupamānayoḥ	pratyupamānānām
Locative	pratyupamāne	pratyupamānayoḥ	pratyupamāneṣu

Compound pratyupamāna -

Adverb -pratyupamānam -pratyupamānāt