Declension table of sādhyatva

Neuter	Singular	Dual	Plural
Nominative	sādhyatvam	sādhyatve	sādhyatvāni
Vocative	sādhyatva	sādhyatve	sādhyatvāni
Accusative	sādhyatvam	sādhyatve	sādhyatvāni
Instrumental	sādhyatvena	sādhyatvābhyām	sādhyatvaiḥ
Dative	sādhyatvāya	sādhyatvābhyām	sādhyatvebhyaḥ
Ablative	sādhyatvāt	sādhyatvābhyām	sādhyatvebhyaḥ
Genitive	sādhyatvasya	sādhyatvayoḥ	sādhyatvānām
Locative	sādhyatve	sādhyatvayoḥ	sādhyatveṣu

Compound sādhyatva -

Adverb -sādhyatvam -sādhyatvāt