Declension table of ?mahayitavya

Neuter	Singular	Dual	Plural
Nominative	mahayitavyam	mahayitavye	mahayitavyāni
Vocative	mahayitavya	mahayitavye	mahayitavyāni
Accusative	mahayitavyam	mahayitavye	mahayitavyāni
Instrumental	mahayitavyena	mahayitavyābhyām	mahayitavyaiḥ
Dative	mahayitavyāya	mahayitavyābhyām	mahayitavyebhyaḥ
Ablative	mahayitavyāt	mahayitavyābhyām	mahayitavyebhyaḥ
Genitive	mahayitavyasya	mahayitavyayoḥ	mahayitavyānām
Locative	mahayitavye	mahayitavyayoḥ	mahayitavyeṣu

Compound mahayitavya -

Adverb -mahayitavyam -mahayitavyāt