Declension table of ?śumbhamāna

Neuter	Singular	Dual	Plural
Nominative	śumbhamānam	śumbhamāne	śumbhamānāni
Vocative	śumbhamāna	śumbhamāne	śumbhamānāni
Accusative	śumbhamānam	śumbhamāne	śumbhamānāni
Instrumental	śumbhamānena	śumbhamānābhyām	śumbhamānaiḥ
Dative	śumbhamānāya	śumbhamānābhyām	śumbhamānebhyaḥ
Ablative	śumbhamānāt	śumbhamānābhyām	śumbhamānebhyaḥ
Genitive	śumbhamānasya	śumbhamānayoḥ	śumbhamānānām
Locative	śumbhamāne	śumbhamānayoḥ	śumbhamāneṣu

Compound śumbhamāna -

Adverb -śumbhamānam -śumbhamānāt