Declension table of ?pūrvakārin

Masculine	Singular	Dual	Plural
Nominative	pūrvakārī	pūrvakāriṇau	pūrvakāriṇaḥ
Vocative	pūrvakārin	pūrvakāriṇau	pūrvakāriṇaḥ
Accusative	pūrvakāriṇam	pūrvakāriṇau	pūrvakāriṇaḥ
Instrumental	pūrvakāriṇā	pūrvakāribhyām	pūrvakāribhiḥ
Dative	pūrvakāriṇe	pūrvakāribhyām	pūrvakāribhyaḥ
Ablative	pūrvakāriṇaḥ	pūrvakāribhyām	pūrvakāribhyaḥ
Genitive	pūrvakāriṇaḥ	pūrvakāriṇoḥ	pūrvakāriṇām
Locative	pūrvakāriṇi	pūrvakāriṇoḥ	pūrvakāriṣu

Compound pūrvakāri -

Adverb -pūrvakāri