Declension table of ?bhūyatva

Neuter	Singular	Dual	Plural
Nominative	bhūyatvam	bhūyatve	bhūyatvāni
Vocative	bhūyatva	bhūyatve	bhūyatvāni
Accusative	bhūyatvam	bhūyatve	bhūyatvāni
Instrumental	bhūyatvena	bhūyatvābhyām	bhūyatvaiḥ
Dative	bhūyatvāya	bhūyatvābhyām	bhūyatvebhyaḥ
Ablative	bhūyatvāt	bhūyatvābhyām	bhūyatvebhyaḥ
Genitive	bhūyatvasya	bhūyatvayoḥ	bhūyatvānām
Locative	bhūyatve	bhūyatvayoḥ	bhūyatveṣu

Compound bhūyatva -

Adverb -bhūyatvam -bhūyatvāt