Declension table of ?ayogyatva

Neuter	Singular	Dual	Plural
Nominative	ayogyatvam	ayogyatve	ayogyatvāni
Vocative	ayogyatva	ayogyatve	ayogyatvāni
Accusative	ayogyatvam	ayogyatve	ayogyatvāni
Instrumental	ayogyatvena	ayogyatvābhyām	ayogyatvaiḥ
Dative	ayogyatvāya	ayogyatvābhyām	ayogyatvebhyaḥ
Ablative	ayogyatvāt	ayogyatvābhyām	ayogyatvebhyaḥ
Genitive	ayogyatvasya	ayogyatvayoḥ	ayogyatvānām
Locative	ayogyatve	ayogyatvayoḥ	ayogyatveṣu

Compound ayogyatva -

Adverb -ayogyatvam -ayogyatvāt