Declension table of karmatva

Neuter	Singular	Dual	Plural
Nominative	karmatvam	karmatve	karmatvāni
Vocative	karmatva	karmatve	karmatvāni
Accusative	karmatvam	karmatve	karmatvāni
Instrumental	karmatvena	karmatvābhyām	karmatvaiḥ
Dative	karmatvāya	karmatvābhyām	karmatvebhyaḥ
Ablative	karmatvāt	karmatvābhyām	karmatvebhyaḥ
Genitive	karmatvasya	karmatvayoḥ	karmatvānām
Locative	karmatve	karmatvayoḥ	karmatveṣu

Compound karmatva -

Adverb -karmatvam -karmatvāt