Declension table of ?upayogya

Masculine	Singular	Dual	Plural
Nominative	upayogyaḥ	upayogyau	upayogyāḥ
Vocative	upayogya	upayogyau	upayogyāḥ
Accusative	upayogyam	upayogyau	upayogyān
Instrumental	upayogyena	upayogyābhyām	upayogyaiḥ upayogyebhiḥ
Dative	upayogyāya	upayogyābhyām	upayogyebhyaḥ
Ablative	upayogyāt	upayogyābhyām	upayogyebhyaḥ
Genitive	upayogyasya	upayogyayoḥ	upayogyānām
Locative	upayogye	upayogyayoḥ	upayogyeṣu

Compound upayogya -

Adverb -upayogyam -upayogyāt