Declension table of ?haṃsatva

Neuter	Singular	Dual	Plural
Nominative	haṃsatvam	haṃsatve	haṃsatvāni
Vocative	haṃsatva	haṃsatve	haṃsatvāni
Accusative	haṃsatvam	haṃsatve	haṃsatvāni
Instrumental	haṃsatvena	haṃsatvābhyām	haṃsatvaiḥ
Dative	haṃsatvāya	haṃsatvābhyām	haṃsatvebhyaḥ
Ablative	haṃsatvāt	haṃsatvābhyām	haṃsatvebhyaḥ
Genitive	haṃsatvasya	haṃsatvayoḥ	haṃsatvānām
Locative	haṃsatve	haṃsatvayoḥ	haṃsatveṣu

Compound haṃsatva -

Adverb -haṃsatvam -haṃsatvāt