Declension table of ?kopyamāna

Masculine	Singular	Dual	Plural
Nominative	kopyamānaḥ	kopyamānau	kopyamānāḥ
Vocative	kopyamāna	kopyamānau	kopyamānāḥ
Accusative	kopyamānam	kopyamānau	kopyamānān
Instrumental	kopyamānena	kopyamānābhyām	kopyamānaiḥ kopyamānebhiḥ
Dative	kopyamānāya	kopyamānābhyām	kopyamānebhyaḥ
Ablative	kopyamānāt	kopyamānābhyām	kopyamānebhyaḥ
Genitive	kopyamānasya	kopyamānayoḥ	kopyamānānām
Locative	kopyamāne	kopyamānayoḥ	kopyamāneṣu

Compound kopyamāna -

Adverb -kopyamānam -kopyamānāt