Declension table of ?dāvayitavya

Neuter	Singular	Dual	Plural
Nominative	dāvayitavyam	dāvayitavye	dāvayitavyāni
Vocative	dāvayitavya	dāvayitavye	dāvayitavyāni
Accusative	dāvayitavyam	dāvayitavye	dāvayitavyāni
Instrumental	dāvayitavyena	dāvayitavyābhyām	dāvayitavyaiḥ
Dative	dāvayitavyāya	dāvayitavyābhyām	dāvayitavyebhyaḥ
Ablative	dāvayitavyāt	dāvayitavyābhyām	dāvayitavyebhyaḥ
Genitive	dāvayitavyasya	dāvayitavyayoḥ	dāvayitavyānām
Locative	dāvayitavye	dāvayitavyayoḥ	dāvayitavyeṣu

Compound dāvayitavya -

Adverb -dāvayitavyam -dāvayitavyāt