Declension table of dva

Masculine	Singular	Dual	Plural
Nominative	dvaḥ	dvau	dvāḥ
Vocative	dva	dvau	dvāḥ
Accusative	dvam	dvau	dvān
Instrumental	dvena	dvābhyām	dvaiḥ dvebhiḥ
Dative	dvāya	dvābhyām	dvebhyaḥ
Ablative	dvāt	dvābhyām	dvebhyaḥ
Genitive	dvasya	dvayoḥ	dvānām
Locative	dve	dvayoḥ	dveṣu

Compound dva -

Adverb -dvam -dvāt