Declension table of upasthāyin

Masculine	Singular	Dual	Plural
Nominative	upasthāyī	upasthāyinau	upasthāyinaḥ
Vocative	upasthāyin	upasthāyinau	upasthāyinaḥ
Accusative	upasthāyinam	upasthāyinau	upasthāyinaḥ
Instrumental	upasthāyinā	upasthāyibhyām	upasthāyibhiḥ
Dative	upasthāyine	upasthāyibhyām	upasthāyibhyaḥ
Ablative	upasthāyinaḥ	upasthāyibhyām	upasthāyibhyaḥ
Genitive	upasthāyinaḥ	upasthāyinoḥ	upasthāyinām
Locative	upasthāyini	upasthāyinoḥ	upasthāyiṣu

Compound upasthāyi -

Adverb -upasthāyi