Declension table of ?kubra

Neuter	Singular	Dual	Plural
Nominative	kubram	kubre	kubrāṇi
Vocative	kubra	kubre	kubrāṇi
Accusative	kubram	kubre	kubrāṇi
Instrumental	kubreṇa	kubrābhyām	kubraiḥ
Dative	kubrāya	kubrābhyām	kubrebhyaḥ
Ablative	kubrāt	kubrābhyām	kubrebhyaḥ
Genitive	kubrasya	kubrayoḥ	kubrāṇām
Locative	kubre	kubrayoḥ	kubreṣu

Compound kubra -

Adverb -kubram -kubrāt