Declension table of ?sādhava

Neuter	Singular	Dual	Plural
Nominative	sādhavam	sādhave	sādhavāni
Vocative	sādhava	sādhave	sādhavāni
Accusative	sādhavam	sādhave	sādhavāni
Instrumental	sādhavena	sādhavābhyām	sādhavaiḥ
Dative	sādhavāya	sādhavābhyām	sādhavebhyaḥ
Ablative	sādhavāt	sādhavābhyām	sādhavebhyaḥ
Genitive	sādhavasya	sādhavayoḥ	sādhavānām
Locative	sādhave	sādhavayoḥ	sādhaveṣu

Compound sādhava -

Adverb -sādhavam -sādhavāt