Declension table of ?dvādaśapattra

Masculine	Singular	Dual	Plural
Nominative	dvādaśapattraḥ	dvādaśapattrau	dvādaśapattrāḥ
Vocative	dvādaśapattra	dvādaśapattrau	dvādaśapattrāḥ
Accusative	dvādaśapattram	dvādaśapattrau	dvādaśapattrān
Instrumental	dvādaśapattreṇa	dvādaśapattrābhyām	dvādaśapattraiḥ dvādaśapattrebhiḥ
Dative	dvādaśapattrāya	dvādaśapattrābhyām	dvādaśapattrebhyaḥ
Ablative	dvādaśapattrāt	dvādaśapattrābhyām	dvādaśapattrebhyaḥ
Genitive	dvādaśapattrasya	dvādaśapattrayoḥ	dvādaśapattrāṇām
Locative	dvādaśapattre	dvādaśapattrayoḥ	dvādaśapattreṣu

Compound dvādaśapattra -

Adverb -dvādaśapattram -dvādaśapattrāt