Declension table of upayoga

Masculine	Singular	Dual	Plural
Nominative	upayogaḥ	upayogau	upayogāḥ
Vocative	upayoga	upayogau	upayogāḥ
Accusative	upayogam	upayogau	upayogān
Instrumental	upayogena	upayogābhyām	upayogaiḥ upayogebhiḥ
Dative	upayogāya	upayogābhyām	upayogebhyaḥ
Ablative	upayogāt	upayogābhyām	upayogebhyaḥ
Genitive	upayogasya	upayogayoḥ	upayogānām
Locative	upayoge	upayogayoḥ	upayogeṣu

Compound upayoga -

Adverb -upayogam -upayogāt