Declension table of ?dhvaṇitavya

Neuter	Singular	Dual	Plural
Nominative	dhvaṇitavyam	dhvaṇitavye	dhvaṇitavyāni
Vocative	dhvaṇitavya	dhvaṇitavye	dhvaṇitavyāni
Accusative	dhvaṇitavyam	dhvaṇitavye	dhvaṇitavyāni
Instrumental	dhvaṇitavyena	dhvaṇitavyābhyām	dhvaṇitavyaiḥ
Dative	dhvaṇitavyāya	dhvaṇitavyābhyām	dhvaṇitavyebhyaḥ
Ablative	dhvaṇitavyāt	dhvaṇitavyābhyām	dhvaṇitavyebhyaḥ
Genitive	dhvaṇitavyasya	dhvaṇitavyayoḥ	dhvaṇitavyānām
Locative	dhvaṇitavye	dhvaṇitavyayoḥ	dhvaṇitavyeṣu

Compound dhvaṇitavya -

Adverb -dhvaṇitavyam -dhvaṇitavyāt