Declension table of ?dhuvāna

Neuter	Singular	Dual	Plural
Nominative	dhuvānam	dhuvāne	dhuvānāni
Vocative	dhuvāna	dhuvāne	dhuvānāni
Accusative	dhuvānam	dhuvāne	dhuvānāni
Instrumental	dhuvānena	dhuvānābhyām	dhuvānaiḥ
Dative	dhuvānāya	dhuvānābhyām	dhuvānebhyaḥ
Ablative	dhuvānāt	dhuvānābhyām	dhuvānebhyaḥ
Genitive	dhuvānasya	dhuvānayoḥ	dhuvānānām
Locative	dhuvāne	dhuvānayoḥ	dhuvāneṣu

Compound dhuvāna -

Adverb -dhuvānam -dhuvānāt