Declension table of pañcarātrin

Masculine	Singular	Dual	Plural
Nominative	pañcarātrī	pañcarātriṇau	pañcarātriṇaḥ
Vocative	pañcarātrin	pañcarātriṇau	pañcarātriṇaḥ
Accusative	pañcarātriṇam	pañcarātriṇau	pañcarātriṇaḥ
Instrumental	pañcarātriṇā	pañcarātribhyām	pañcarātribhiḥ
Dative	pañcarātriṇe	pañcarātribhyām	pañcarātribhyaḥ
Ablative	pañcarātriṇaḥ	pañcarātribhyām	pañcarātribhyaḥ
Genitive	pañcarātriṇaḥ	pañcarātriṇoḥ	pañcarātriṇām
Locative	pañcarātriṇi	pañcarātriṇoḥ	pañcarātriṣu

Compound pañcarātri -

Adverb -pañcarātri