Declension table of ?yamakatva

Neuter	Singular	Dual	Plural
Nominative	yamakatvam	yamakatve	yamakatvāni
Vocative	yamakatva	yamakatve	yamakatvāni
Accusative	yamakatvam	yamakatve	yamakatvāni
Instrumental	yamakatvena	yamakatvābhyām	yamakatvaiḥ
Dative	yamakatvāya	yamakatvābhyām	yamakatvebhyaḥ
Ablative	yamakatvāt	yamakatvābhyām	yamakatvebhyaḥ
Genitive	yamakatvasya	yamakatvayoḥ	yamakatvānām
Locative	yamakatve	yamakatvayoḥ	yamakatveṣu

Compound yamakatva -

Adverb -yamakatvam -yamakatvāt