Declension table of ?duḥkhamayatva

Neuter	Singular	Dual	Plural
Nominative	duḥkhamayatvam	duḥkhamayatve	duḥkhamayatvāni
Vocative	duḥkhamayatva	duḥkhamayatve	duḥkhamayatvāni
Accusative	duḥkhamayatvam	duḥkhamayatve	duḥkhamayatvāni
Instrumental	duḥkhamayatvena	duḥkhamayatvābhyām	duḥkhamayatvaiḥ
Dative	duḥkhamayatvāya	duḥkhamayatvābhyām	duḥkhamayatvebhyaḥ
Ablative	duḥkhamayatvāt	duḥkhamayatvābhyām	duḥkhamayatvebhyaḥ
Genitive	duḥkhamayatvasya	duḥkhamayatvayoḥ	duḥkhamayatvānām
Locative	duḥkhamayatve	duḥkhamayatvayoḥ	duḥkhamayatveṣu

Compound duḥkhamayatva -

Adverb -duḥkhamayatvam -duḥkhamayatvāt