Declension table of pātavya

Masculine	Singular	Dual	Plural
Nominative	pātavyaḥ	pātavyau	pātavyāḥ
Vocative	pātavya	pātavyau	pātavyāḥ
Accusative	pātavyam	pātavyau	pātavyān
Instrumental	pātavyena	pātavyābhyām	pātavyaiḥ pātavyebhiḥ
Dative	pātavyāya	pātavyābhyām	pātavyebhyaḥ
Ablative	pātavyāt	pātavyābhyām	pātavyebhyaḥ
Genitive	pātavyasya	pātavyayoḥ	pātavyānām
Locative	pātavye	pātavyayoḥ	pātavyeṣu

Compound pātavya -

Adverb -pātavyam -pātavyāt