Declension table of pratyaya

Masculine	Singular	Dual	Plural
Nominative	pratyayaḥ	pratyayau	pratyayāḥ
Vocative	pratyaya	pratyayau	pratyayāḥ
Accusative	pratyayam	pratyayau	pratyayān
Instrumental	pratyayena	pratyayābhyām	pratyayaiḥ pratyayebhiḥ
Dative	pratyayāya	pratyayābhyām	pratyayebhyaḥ
Ablative	pratyayāt	pratyayābhyām	pratyayebhyaḥ
Genitive	pratyayasya	pratyayayoḥ	pratyayānām
Locative	pratyaye	pratyayayoḥ	pratyayeṣu

Compound pratyaya -

Adverb -pratyayam -pratyayāt