Declension table of ?yuvaka

Masculine	Singular	Dual	Plural
Nominative	yuvakaḥ	yuvakau	yuvakāḥ
Vocative	yuvaka	yuvakau	yuvakāḥ
Accusative	yuvakam	yuvakau	yuvakān
Instrumental	yuvakena	yuvakābhyām	yuvakaiḥ yuvakebhiḥ
Dative	yuvakāya	yuvakābhyām	yuvakebhyaḥ
Ablative	yuvakāt	yuvakābhyām	yuvakebhyaḥ
Genitive	yuvakasya	yuvakayoḥ	yuvakānām
Locative	yuvake	yuvakayoḥ	yuvakeṣu

Compound yuvaka -

Adverb -yuvakam -yuvakāt