Declension table of dvīpa

Masculine	Singular	Dual	Plural
Nominative	dvīpaḥ	dvīpau	dvīpāḥ
Vocative	dvīpa	dvīpau	dvīpāḥ
Accusative	dvīpam	dvīpau	dvīpān
Instrumental	dvīpena	dvīpābhyām	dvīpaiḥ dvīpebhiḥ
Dative	dvīpāya	dvīpābhyām	dvīpebhyaḥ
Ablative	dvīpāt	dvīpābhyām	dvīpebhyaḥ
Genitive	dvīpasya	dvīpayoḥ	dvīpānām
Locative	dvīpe	dvīpayoḥ	dvīpeṣu

Compound dvīpa -

Adverb -dvīpam -dvīpāt