Declension table of ?dhāpayitavya

Neuter	Singular	Dual	Plural
Nominative	dhāpayitavyam	dhāpayitavye	dhāpayitavyāni
Vocative	dhāpayitavya	dhāpayitavye	dhāpayitavyāni
Accusative	dhāpayitavyam	dhāpayitavye	dhāpayitavyāni
Instrumental	dhāpayitavyena	dhāpayitavyābhyām	dhāpayitavyaiḥ
Dative	dhāpayitavyāya	dhāpayitavyābhyām	dhāpayitavyebhyaḥ
Ablative	dhāpayitavyāt	dhāpayitavyābhyām	dhāpayitavyebhyaḥ
Genitive	dhāpayitavyasya	dhāpayitavyayoḥ	dhāpayitavyānām
Locative	dhāpayitavye	dhāpayitavyayoḥ	dhāpayitavyeṣu

Compound dhāpayitavya -

Adverb -dhāpayitavyam -dhāpayitavyāt