Declension table of pratna

Masculine	Singular	Dual	Plural
Nominative	pratnaḥ	pratnau	pratnāḥ
Vocative	pratna	pratnau	pratnāḥ
Accusative	pratnam	pratnau	pratnān
Instrumental	pratnena	pratnābhyām	pratnaiḥ pratnebhiḥ
Dative	pratnāya	pratnābhyām	pratnebhyaḥ
Ablative	pratnāt	pratnābhyām	pratnebhyaḥ
Genitive	pratnasya	pratnayoḥ	pratnānām
Locative	pratne	pratnayoḥ	pratneṣu

Compound pratna -

Adverb -pratnam -pratnāt