Declension table of ?nasitavya

Neuter	Singular	Dual	Plural
Nominative	nasitavyam	nasitavye	nasitavyāni
Vocative	nasitavya	nasitavye	nasitavyāni
Accusative	nasitavyam	nasitavye	nasitavyāni
Instrumental	nasitavyena	nasitavyābhyām	nasitavyaiḥ
Dative	nasitavyāya	nasitavyābhyām	nasitavyebhyaḥ
Ablative	nasitavyāt	nasitavyābhyām	nasitavyebhyaḥ
Genitive	nasitavyasya	nasitavyayoḥ	nasitavyānām
Locative	nasitavye	nasitavyayoḥ	nasitavyeṣu

Compound nasitavya -

Adverb -nasitavyam -nasitavyāt