Declension table of kartṛtva

Neuter	Singular	Dual	Plural
Nominative	kartṛtvam	kartṛtve	kartṛtvāni
Vocative	kartṛtva	kartṛtve	kartṛtvāni
Accusative	kartṛtvam	kartṛtve	kartṛtvāni
Instrumental	kartṛtvena	kartṛtvābhyām	kartṛtvaiḥ
Dative	kartṛtvāya	kartṛtvābhyām	kartṛtvebhyaḥ
Ablative	kartṛtvāt	kartṛtvābhyām	kartṛtvebhyaḥ
Genitive	kartṛtvasya	kartṛtvayoḥ	kartṛtvānām
Locative	kartṛtve	kartṛtvayoḥ	kartṛtveṣu

Compound kartṛtva -

Adverb -kartṛtvam -kartṛtvāt