Declension table of purātana

Neuter	Singular	Dual	Plural
Nominative	purātanam	purātane	purātanāni
Vocative	purātana	purātane	purātanāni
Accusative	purātanam	purātane	purātanāni
Instrumental	purātanena	purātanābhyām	purātanaiḥ
Dative	purātanāya	purātanābhyām	purātanebhyaḥ
Ablative	purātanāt	purātanābhyām	purātanebhyaḥ
Genitive	purātanasya	purātanayoḥ	purātanānām
Locative	purātane	purātanayoḥ	purātaneṣu

Compound purātana -

Adverb -purātanam -purātanāt