Declension table of ?dīrghadarśana

Neuter	Singular	Dual	Plural
Nominative	dīrghadarśanam	dīrghadarśane	dīrghadarśanāni
Vocative	dīrghadarśana	dīrghadarśane	dīrghadarśanāni
Accusative	dīrghadarśanam	dīrghadarśane	dīrghadarśanāni
Instrumental	dīrghadarśanena	dīrghadarśanābhyām	dīrghadarśanaiḥ
Dative	dīrghadarśanāya	dīrghadarśanābhyām	dīrghadarśanebhyaḥ
Ablative	dīrghadarśanāt	dīrghadarśanābhyām	dīrghadarśanebhyaḥ
Genitive	dīrghadarśanasya	dīrghadarśanayoḥ	dīrghadarśanānām
Locative	dīrghadarśane	dīrghadarśanayoḥ	dīrghadarśaneṣu

Compound dīrghadarśana -

Adverb -dīrghadarśanam -dīrghadarśanāt