Declension table of sumana

Masculine	Singular	Dual	Plural
Nominative	sumanaḥ	sumanau	sumanāḥ
Vocative	sumana	sumanau	sumanāḥ
Accusative	sumanam	sumanau	sumanān
Instrumental	sumanena	sumanābhyām	sumanaiḥ sumanebhiḥ
Dative	sumanāya	sumanābhyām	sumanebhyaḥ
Ablative	sumanāt	sumanābhyām	sumanebhyaḥ
Genitive	sumanasya	sumanayoḥ	sumanānām
Locative	sumane	sumanayoḥ	sumaneṣu

Compound sumana -

Adverb -sumanam -sumanāt