Declension table of ?yāpayitavya

Masculine	Singular	Dual	Plural
Nominative	yāpayitavyaḥ	yāpayitavyau	yāpayitavyāḥ
Vocative	yāpayitavya	yāpayitavyau	yāpayitavyāḥ
Accusative	yāpayitavyam	yāpayitavyau	yāpayitavyān
Instrumental	yāpayitavyena	yāpayitavyābhyām	yāpayitavyaiḥ yāpayitavyebhiḥ
Dative	yāpayitavyāya	yāpayitavyābhyām	yāpayitavyebhyaḥ
Ablative	yāpayitavyāt	yāpayitavyābhyām	yāpayitavyebhyaḥ
Genitive	yāpayitavyasya	yāpayitavyayoḥ	yāpayitavyānām
Locative	yāpayitavye	yāpayitavyayoḥ	yāpayitavyeṣu

Compound yāpayitavya -

Adverb -yāpayitavyam -yāpayitavyāt