Declension table of ?tumbyamāna

Neuter	Singular	Dual	Plural
Nominative	tumbyamānam	tumbyamāne	tumbyamānāni
Vocative	tumbyamāna	tumbyamāne	tumbyamānāni
Accusative	tumbyamānam	tumbyamāne	tumbyamānāni
Instrumental	tumbyamānena	tumbyamānābhyām	tumbyamānaiḥ
Dative	tumbyamānāya	tumbyamānābhyām	tumbyamānebhyaḥ
Ablative	tumbyamānāt	tumbyamānābhyām	tumbyamānebhyaḥ
Genitive	tumbyamānasya	tumbyamānayoḥ	tumbyamānānām
Locative	tumbyamāne	tumbyamānayoḥ	tumbyamāneṣu

Compound tumbyamāna -

Adverb -tumbyamānam -tumbyamānāt