Declension table of ?vyañjakatva

Neuter	Singular	Dual	Plural
Nominative	vyañjakatvam	vyañjakatve	vyañjakatvāni
Vocative	vyañjakatva	vyañjakatve	vyañjakatvāni
Accusative	vyañjakatvam	vyañjakatve	vyañjakatvāni
Instrumental	vyañjakatvena	vyañjakatvābhyām	vyañjakatvaiḥ
Dative	vyañjakatvāya	vyañjakatvābhyām	vyañjakatvebhyaḥ
Ablative	vyañjakatvāt	vyañjakatvābhyām	vyañjakatvebhyaḥ
Genitive	vyañjakatvasya	vyañjakatvayoḥ	vyañjakatvānām
Locative	vyañjakatve	vyañjakatvayoḥ	vyañjakatveṣu

Compound vyañjakatva -

Adverb -vyañjakatvam -vyañjakatvāt