Declension table of ?upasaṃyoga

Masculine	Singular	Dual	Plural
Nominative	upasaṃyogaḥ	upasaṃyogau	upasaṃyogāḥ
Vocative	upasaṃyoga	upasaṃyogau	upasaṃyogāḥ
Accusative	upasaṃyogam	upasaṃyogau	upasaṃyogān
Instrumental	upasaṃyogena	upasaṃyogābhyām	upasaṃyogaiḥ upasaṃyogebhiḥ
Dative	upasaṃyogāya	upasaṃyogābhyām	upasaṃyogebhyaḥ
Ablative	upasaṃyogāt	upasaṃyogābhyām	upasaṃyogebhyaḥ
Genitive	upasaṃyogasya	upasaṃyogayoḥ	upasaṃyogānām
Locative	upasaṃyoge	upasaṃyogayoḥ	upasaṃyogeṣu

Compound upasaṃyoga -

Adverb -upasaṃyogam -upasaṃyogāt