Declension table of ?kartṛkatva

Neuter	Singular	Dual	Plural
Nominative	kartṛkatvam	kartṛkatve	kartṛkatvāni
Vocative	kartṛkatva	kartṛkatve	kartṛkatvāni
Accusative	kartṛkatvam	kartṛkatve	kartṛkatvāni
Instrumental	kartṛkatvena	kartṛkatvābhyām	kartṛkatvaiḥ
Dative	kartṛkatvāya	kartṛkatvābhyām	kartṛkatvebhyaḥ
Ablative	kartṛkatvāt	kartṛkatvābhyām	kartṛkatvebhyaḥ
Genitive	kartṛkatvasya	kartṛkatvayoḥ	kartṛkatvānām
Locative	kartṛkatve	kartṛkatvayoḥ	kartṛkatveṣu

Compound kartṛkatva -

Adverb -kartṛkatvam -kartṛkatvāt