Declension table of pūrvavayas

Masculine	Singular	Dual	Plural
Nominative	pūrvavayān	pūrvavayāṃsau	pūrvavayāṃsaḥ
Vocative	pūrvavayan	pūrvavayāṃsau	pūrvavayāṃsaḥ
Accusative	pūrvavayāṃsam	pūrvavayāṃsau	pūrvavayasaḥ
Instrumental	pūrvavayasā	pūrvavayobhyām	pūrvavayobhiḥ
Dative	pūrvavayase	pūrvavayobhyām	pūrvavayobhyaḥ
Ablative	pūrvavayasaḥ	pūrvavayobhyām	pūrvavayobhyaḥ
Genitive	pūrvavayasaḥ	pūrvavayasoḥ	pūrvavayasām
Locative	pūrvavayasi	pūrvavayasoḥ	pūrvavayaḥsu

Compound pūrvavayas -

Adverb -pūrvavayas