Declension table of usra

Masculine	Singular	Dual	Plural
Nominative	usraḥ	usrau	usrāḥ
Vocative	usra	usrau	usrāḥ
Accusative	usram	usrau	usrān
Instrumental	usreṇa	usrābhyām	usraiḥ usrebhiḥ
Dative	usrāya	usrābhyām	usrebhyaḥ
Ablative	usrāt	usrābhyām	usrebhyaḥ
Genitive	usrasya	usrayoḥ	usrāṇām
Locative	usre	usrayoḥ	usreṣu

Compound usra -

Adverb -usram -usrāt