Declension table of ?auparava

Masculine	Singular	Dual	Plural
Nominative	auparavaḥ	auparavau	auparavāḥ
Vocative	auparava	auparavau	auparavāḥ
Accusative	auparavam	auparavau	auparavān
Instrumental	auparaveṇa	auparavābhyām	auparavaiḥ auparavebhiḥ
Dative	auparavāya	auparavābhyām	auparavebhyaḥ
Ablative	auparavāt	auparavābhyām	auparavebhyaḥ
Genitive	auparavasya	auparavayoḥ	auparavāṇām
Locative	auparave	auparavayoḥ	auparaveṣu

Compound auparava -

Adverb -auparavam -auparavāt