Declension table of ?nāyayitavya

Neuter	Singular	Dual	Plural
Nominative	nāyayitavyam	nāyayitavye	nāyayitavyāni
Vocative	nāyayitavya	nāyayitavye	nāyayitavyāni
Accusative	nāyayitavyam	nāyayitavye	nāyayitavyāni
Instrumental	nāyayitavyena	nāyayitavyābhyām	nāyayitavyaiḥ
Dative	nāyayitavyāya	nāyayitavyābhyām	nāyayitavyebhyaḥ
Ablative	nāyayitavyāt	nāyayitavyābhyām	nāyayitavyebhyaḥ
Genitive	nāyayitavyasya	nāyayitavyayoḥ	nāyayitavyānām
Locative	nāyayitavye	nāyayitavyayoḥ	nāyayitavyeṣu

Compound nāyayitavya -

Adverb -nāyayitavyam -nāyayitavyāt