Declension table of ?vastyamāna

Neuter	Singular	Dual	Plural
Nominative	vastyamānam	vastyamāne	vastyamānāni
Vocative	vastyamāna	vastyamāne	vastyamānāni
Accusative	vastyamānam	vastyamāne	vastyamānāni
Instrumental	vastyamānena	vastyamānābhyām	vastyamānaiḥ
Dative	vastyamānāya	vastyamānābhyām	vastyamānebhyaḥ
Ablative	vastyamānāt	vastyamānābhyām	vastyamānebhyaḥ
Genitive	vastyamānasya	vastyamānayoḥ	vastyamānānām
Locative	vastyamāne	vastyamānayoḥ	vastyamāneṣu

Compound vastyamāna -

Adverb -vastyamānam -vastyamānāt