Declension table of dureva

Neuter	Singular	Dual	Plural
Nominative	durevam	dureve	durevāṇi
Vocative	dureva	dureve	durevāṇi
Accusative	durevam	dureve	durevāṇi
Instrumental	dureveṇa	durevābhyām	durevaiḥ
Dative	durevāya	durevābhyām	durevebhyaḥ
Ablative	durevāt	durevābhyām	durevebhyaḥ
Genitive	durevasya	durevayoḥ	durevāṇām
Locative	dureve	durevayoḥ	dureveṣu

Compound dureva -

Adverb -durevam -durevāt