Declension table of ?dīrghapattra

Masculine	Singular	Dual	Plural
Nominative	dīrghapattraḥ	dīrghapattrau	dīrghapattrāḥ
Vocative	dīrghapattra	dīrghapattrau	dīrghapattrāḥ
Accusative	dīrghapattram	dīrghapattrau	dīrghapattrān
Instrumental	dīrghapattreṇa	dīrghapattrābhyām	dīrghapattraiḥ dīrghapattrebhiḥ
Dative	dīrghapattrāya	dīrghapattrābhyām	dīrghapattrebhyaḥ
Ablative	dīrghapattrāt	dīrghapattrābhyām	dīrghapattrebhyaḥ
Genitive	dīrghapattrasya	dīrghapattrayoḥ	dīrghapattrāṇām
Locative	dīrghapattre	dīrghapattrayoḥ	dīrghapattreṣu

Compound dīrghapattra -

Adverb -dīrghapattram -dīrghapattrāt