Declension table of ?mamāna

Neuter	Singular	Dual	Plural
Nominative	mamānam	mamāne	mamānāni
Vocative	mamāna	mamāne	mamānāni
Accusative	mamānam	mamāne	mamānāni
Instrumental	mamānena	mamānābhyām	mamānaiḥ
Dative	mamānāya	mamānābhyām	mamānebhyaḥ
Ablative	mamānāt	mamānābhyām	mamānebhyaḥ
Genitive	mamānasya	mamānayoḥ	mamānānām
Locative	mamāne	mamānayoḥ	mamāneṣu

Compound mamāna -

Adverb -mamānam -mamānāt