Declension table of ?dūyamāna

Neuter	Singular	Dual	Plural
Nominative	dūyamānam	dūyamāne	dūyamānāni
Vocative	dūyamāna	dūyamāne	dūyamānāni
Accusative	dūyamānam	dūyamāne	dūyamānāni
Instrumental	dūyamānena	dūyamānābhyām	dūyamānaiḥ
Dative	dūyamānāya	dūyamānābhyām	dūyamānebhyaḥ
Ablative	dūyamānāt	dūyamānābhyām	dūyamānebhyaḥ
Genitive	dūyamānasya	dūyamānayoḥ	dūyamānānām
Locative	dūyamāne	dūyamānayoḥ	dūyamāneṣu

Compound dūyamāna -

Adverb -dūyamānam -dūyamānāt