Declension table of ?bhūrbhūra

Masculine	Singular	Dual	Plural
Nominative	bhūrbhūraḥ	bhūrbhūrau	bhūrbhūrāḥ
Vocative	bhūrbhūra	bhūrbhūrau	bhūrbhūrāḥ
Accusative	bhūrbhūram	bhūrbhūrau	bhūrbhūrān
Instrumental	bhūrbhūreṇa	bhūrbhūrābhyām	bhūrbhūraiḥ bhūrbhūrebhiḥ
Dative	bhūrbhūrāya	bhūrbhūrābhyām	bhūrbhūrebhyaḥ
Ablative	bhūrbhūrāt	bhūrbhūrābhyām	bhūrbhūrebhyaḥ
Genitive	bhūrbhūrasya	bhūrbhūrayoḥ	bhūrbhūrāṇām
Locative	bhūrbhūre	bhūrbhūrayoḥ	bhūrbhūreṣu

Compound bhūrbhūra -

Adverb -bhūrbhūram -bhūrbhūrāt