Declension table of ?sapūrva

Neuter	Singular	Dual	Plural
Nominative	sapūrvam	sapūrve	sapūrvāṇi
Vocative	sapūrva	sapūrve	sapūrvāṇi
Accusative	sapūrvam	sapūrve	sapūrvāṇi
Instrumental	sapūrveṇa	sapūrvābhyām	sapūrvaiḥ
Dative	sapūrvāya	sapūrvābhyām	sapūrvebhyaḥ
Ablative	sapūrvāt	sapūrvābhyām	sapūrvebhyaḥ
Genitive	sapūrvasya	sapūrvayoḥ	sapūrvāṇām
Locative	sapūrve	sapūrvayoḥ	sapūrveṣu

Compound sapūrva -

Adverb -sapūrvam -sapūrvāt