Declension table of ?duravasthita

Neuter	Singular	Dual	Plural
Nominative	duravasthitam	duravasthite	duravasthitāni
Vocative	duravasthita	duravasthite	duravasthitāni
Accusative	duravasthitam	duravasthite	duravasthitāni
Instrumental	duravasthitena	duravasthitābhyām	duravasthitaiḥ
Dative	duravasthitāya	duravasthitābhyām	duravasthitebhyaḥ
Ablative	duravasthitāt	duravasthitābhyām	duravasthitebhyaḥ
Genitive	duravasthitasya	duravasthitayoḥ	duravasthitānām
Locative	duravasthite	duravasthitayoḥ	duravasthiteṣu

Compound duravasthita -

Adverb -duravasthitam -duravasthitāt