Declension table of ?pūrvaga

Masculine	Singular	Dual	Plural
Nominative	pūrvagaḥ	pūrvagau	pūrvagāḥ
Vocative	pūrvaga	pūrvagau	pūrvagāḥ
Accusative	pūrvagam	pūrvagau	pūrvagān
Instrumental	pūrvageṇa	pūrvagābhyām	pūrvagaiḥ pūrvagebhiḥ
Dative	pūrvagāya	pūrvagābhyām	pūrvagebhyaḥ
Ablative	pūrvagāt	pūrvagābhyām	pūrvagebhyaḥ
Genitive	pūrvagasya	pūrvagayoḥ	pūrvagāṇām
Locative	pūrvage	pūrvagayoḥ	pūrvageṣu

Compound pūrvaga -

Adverb -pūrvagam -pūrvagāt