Declension table of pūrvatva

Neuter	Singular	Dual	Plural
Nominative	pūrvatvam	pūrvatve	pūrvatvāni
Vocative	pūrvatva	pūrvatve	pūrvatvāni
Accusative	pūrvatvam	pūrvatve	pūrvatvāni
Instrumental	pūrvatvena	pūrvatvābhyām	pūrvatvaiḥ
Dative	pūrvatvāya	pūrvatvābhyām	pūrvatvebhyaḥ
Ablative	pūrvatvāt	pūrvatvābhyām	pūrvatvebhyaḥ
Genitive	pūrvatvasya	pūrvatvayoḥ	pūrvatvānām
Locative	pūrvatve	pūrvatvayoḥ	pūrvatveṣu

Compound pūrvatva -

Adverb -pūrvatvam -pūrvatvāt