Declension table of ?pratiyuvana

Neuter	Singular	Dual	Plural
Nominative	pratiyuvanam	pratiyuvane	pratiyuvanāni
Vocative	pratiyuvana	pratiyuvane	pratiyuvanāni
Accusative	pratiyuvanam	pratiyuvane	pratiyuvanāni
Instrumental	pratiyuvanena	pratiyuvanābhyām	pratiyuvanaiḥ
Dative	pratiyuvanāya	pratiyuvanābhyām	pratiyuvanebhyaḥ
Ablative	pratiyuvanāt	pratiyuvanābhyām	pratiyuvanebhyaḥ
Genitive	pratiyuvanasya	pratiyuvanayoḥ	pratiyuvanānām
Locative	pratiyuvane	pratiyuvanayoḥ	pratiyuvaneṣu

Compound pratiyuvana -

Adverb -pratiyuvanam -pratiyuvanāt