Declension table of ?pūrvapadatva

Neuter	Singular	Dual	Plural
Nominative	pūrvapadatvam	pūrvapadatve	pūrvapadatvāni
Vocative	pūrvapadatva	pūrvapadatve	pūrvapadatvāni
Accusative	pūrvapadatvam	pūrvapadatve	pūrvapadatvāni
Instrumental	pūrvapadatvena	pūrvapadatvābhyām	pūrvapadatvaiḥ
Dative	pūrvapadatvāya	pūrvapadatvābhyām	pūrvapadatvebhyaḥ
Ablative	pūrvapadatvāt	pūrvapadatvābhyām	pūrvapadatvebhyaḥ
Genitive	pūrvapadatvasya	pūrvapadatvayoḥ	pūrvapadatvānām
Locative	pūrvapadatve	pūrvapadatvayoḥ	pūrvapadatveṣu

Compound pūrvapadatva -

Adverb -pūrvapadatvam -pūrvapadatvāt