Declension table of ?tumbuka

Masculine	Singular	Dual	Plural
Nominative	tumbukaḥ	tumbukau	tumbukāḥ
Vocative	tumbuka	tumbukau	tumbukāḥ
Accusative	tumbukam	tumbukau	tumbukān
Instrumental	tumbukena	tumbukābhyām	tumbukaiḥ tumbukebhiḥ
Dative	tumbukāya	tumbukābhyām	tumbukebhyaḥ
Ablative	tumbukāt	tumbukābhyām	tumbukebhyaḥ
Genitive	tumbukasya	tumbukayoḥ	tumbukānām
Locative	tumbuke	tumbukayoḥ	tumbukeṣu

Compound tumbuka -

Adverb -tumbukam -tumbukāt