Declension table of ?bhartṛghnatva

Neuter	Singular	Dual	Plural
Nominative	bhartṛghnatvam	bhartṛghnatve	bhartṛghnatvāni
Vocative	bhartṛghnatva	bhartṛghnatve	bhartṛghnatvāni
Accusative	bhartṛghnatvam	bhartṛghnatve	bhartṛghnatvāni
Instrumental	bhartṛghnatvena	bhartṛghnatvābhyām	bhartṛghnatvaiḥ
Dative	bhartṛghnatvāya	bhartṛghnatvābhyām	bhartṛghnatvebhyaḥ
Ablative	bhartṛghnatvāt	bhartṛghnatvābhyām	bhartṛghnatvebhyaḥ
Genitive	bhartṛghnatvasya	bhartṛghnatvayoḥ	bhartṛghnatvānām
Locative	bhartṛghnatve	bhartṛghnatvayoḥ	bhartṛghnatveṣu

Compound bhartṛghnatva -

Adverb -bhartṛghnatvam -bhartṛghnatvāt