Declension table of ?pūrvakārya

Masculine	Singular	Dual	Plural
Nominative	pūrvakāryaḥ	pūrvakāryau	pūrvakāryāḥ
Vocative	pūrvakārya	pūrvakāryau	pūrvakāryāḥ
Accusative	pūrvakāryam	pūrvakāryau	pūrvakāryān
Instrumental	pūrvakāryeṇa	pūrvakāryābhyām	pūrvakāryaiḥ pūrvakāryebhiḥ
Dative	pūrvakāryāya	pūrvakāryābhyām	pūrvakāryebhyaḥ
Ablative	pūrvakāryāt	pūrvakāryābhyām	pūrvakāryebhyaḥ
Genitive	pūrvakāryasya	pūrvakāryayoḥ	pūrvakāryāṇām
Locative	pūrvakārye	pūrvakāryayoḥ	pūrvakāryeṣu

Compound pūrvakārya -

Adverb -pūrvakāryam -pūrvakāryāt