Declension table of ?pūrvabhāvin

Masculine	Singular	Dual	Plural
Nominative	pūrvabhāvī	pūrvabhāviṇau	pūrvabhāviṇaḥ
Vocative	pūrvabhāvin	pūrvabhāviṇau	pūrvabhāviṇaḥ
Accusative	pūrvabhāviṇam	pūrvabhāviṇau	pūrvabhāviṇaḥ
Instrumental	pūrvabhāviṇā	pūrvabhāvibhyām	pūrvabhāvibhiḥ
Dative	pūrvabhāviṇe	pūrvabhāvibhyām	pūrvabhāvibhyaḥ
Ablative	pūrvabhāviṇaḥ	pūrvabhāvibhyām	pūrvabhāvibhyaḥ
Genitive	pūrvabhāviṇaḥ	pūrvabhāviṇoḥ	pūrvabhāviṇām
Locative	pūrvabhāviṇi	pūrvabhāviṇoḥ	pūrvabhāviṣu

Compound pūrvabhāvi -

Adverb -pūrvabhāvi