Declension table of ?bhavadvacana

Neuter	Singular	Dual	Plural
Nominative	bhavadvacanam	bhavadvacane	bhavadvacanāni
Vocative	bhavadvacana	bhavadvacane	bhavadvacanāni
Accusative	bhavadvacanam	bhavadvacane	bhavadvacanāni
Instrumental	bhavadvacanena	bhavadvacanābhyām	bhavadvacanaiḥ
Dative	bhavadvacanāya	bhavadvacanābhyām	bhavadvacanebhyaḥ
Ablative	bhavadvacanāt	bhavadvacanābhyām	bhavadvacanebhyaḥ
Genitive	bhavadvacanasya	bhavadvacanayoḥ	bhavadvacanānām
Locative	bhavadvacane	bhavadvacanayoḥ	bhavadvacaneṣu

Compound bhavadvacana -

Adverb -bhavadvacanam -bhavadvacanāt