Declension table of ?mahāsvana

Neuter	Singular	Dual	Plural
Nominative	mahāsvanam	mahāsvane	mahāsvanāni
Vocative	mahāsvana	mahāsvane	mahāsvanāni
Accusative	mahāsvanam	mahāsvane	mahāsvanāni
Instrumental	mahāsvanena	mahāsvanābhyām	mahāsvanaiḥ
Dative	mahāsvanāya	mahāsvanābhyām	mahāsvanebhyaḥ
Ablative	mahāsvanāt	mahāsvanābhyām	mahāsvanebhyaḥ
Genitive	mahāsvanasya	mahāsvanayoḥ	mahāsvanānām
Locative	mahāsvane	mahāsvanayoḥ	mahāsvaneṣu

Compound mahāsvana -

Adverb -mahāsvanam -mahāsvanāt