Declension table of ?vāpayitavya

Neuter	Singular	Dual	Plural
Nominative	vāpayitavyam	vāpayitavye	vāpayitavyāni
Vocative	vāpayitavya	vāpayitavye	vāpayitavyāni
Accusative	vāpayitavyam	vāpayitavye	vāpayitavyāni
Instrumental	vāpayitavyena	vāpayitavyābhyām	vāpayitavyaiḥ
Dative	vāpayitavyāya	vāpayitavyābhyām	vāpayitavyebhyaḥ
Ablative	vāpayitavyāt	vāpayitavyābhyām	vāpayitavyebhyaḥ
Genitive	vāpayitavyasya	vāpayitavyayoḥ	vāpayitavyānām
Locative	vāpayitavye	vāpayitavyayoḥ	vāpayitavyeṣu

Compound vāpayitavya -

Adverb -vāpayitavyam -vāpayitavyāt