Declension table of ?vettavya

Neuter	Singular	Dual	Plural
Nominative	vettavyam	vettavye	vettavyāni
Vocative	vettavya	vettavye	vettavyāni
Accusative	vettavyam	vettavye	vettavyāni
Instrumental	vettavyena	vettavyābhyām	vettavyaiḥ
Dative	vettavyāya	vettavyābhyām	vettavyebhyaḥ
Ablative	vettavyāt	vettavyābhyām	vettavyebhyaḥ
Genitive	vettavyasya	vettavyayoḥ	vettavyānām
Locative	vettavye	vettavyayoḥ	vettavyeṣu

Compound vettavya -

Adverb -vettavyam -vettavyāt