Declension table of guru

Neuter	Singular	Dual	Plural
Nominative	guru	guruṇī	gurūṇi
Vocative	guro guru	guruṇī	gurūṇi
Accusative	guru	guruṇī	gurūṇi
Instrumental	guruṇā	gurubhyām	gurubhiḥ
Dative	guruṇe gurave	gurubhyām	gurubhyaḥ
Ablative	gureḥ guruṇaḥ	gurubhyām	gurubhyaḥ
Genitive	gureḥ guruṇaḥ	gurvoḥ guruṇoḥ	gurūṇām
Locative	gurau guruṇi	gurvoḥ guruṇoḥ	guruṣu

Compound guru -

Adverb -guru