Declension table of ?yatavya

Masculine	Singular	Dual	Plural
Nominative	yatavyaḥ	yatavyau	yatavyāḥ
Vocative	yatavya	yatavyau	yatavyāḥ
Accusative	yatavyam	yatavyau	yatavyān
Instrumental	yatavyena	yatavyābhyām	yatavyaiḥ yatavyebhiḥ
Dative	yatavyāya	yatavyābhyām	yatavyebhyaḥ
Ablative	yatavyāt	yatavyābhyām	yatavyebhyaḥ
Genitive	yatavyasya	yatavyayoḥ	yatavyānām
Locative	yatavye	yatavyayoḥ	yatavyeṣu

Compound yatavya -

Adverb -yatavyam -yatavyāt