Declension table of ?vyayasthāna

Neuter	Singular	Dual	Plural
Nominative	vyayasthānam	vyayasthāne	vyayasthānāni
Vocative	vyayasthāna	vyayasthāne	vyayasthānāni
Accusative	vyayasthānam	vyayasthāne	vyayasthānāni
Instrumental	vyayasthānena	vyayasthānābhyām	vyayasthānaiḥ
Dative	vyayasthānāya	vyayasthānābhyām	vyayasthānebhyaḥ
Ablative	vyayasthānāt	vyayasthānābhyām	vyayasthānebhyaḥ
Genitive	vyayasthānasya	vyayasthānayoḥ	vyayasthānānām
Locative	vyayasthāne	vyayasthānayoḥ	vyayasthāneṣu

Compound vyayasthāna -

Adverb -vyayasthānam -vyayasthānāt