Declension table of ?vayiṣyat

Masculine	Singular	Dual	Plural
Nominative	vayiṣyan	vayiṣyantau	vayiṣyantaḥ
Vocative	vayiṣyan	vayiṣyantau	vayiṣyantaḥ
Accusative	vayiṣyantam	vayiṣyantau	vayiṣyataḥ
Instrumental	vayiṣyatā	vayiṣyadbhyām	vayiṣyadbhiḥ
Dative	vayiṣyate	vayiṣyadbhyām	vayiṣyadbhyaḥ
Ablative	vayiṣyataḥ	vayiṣyadbhyām	vayiṣyadbhyaḥ
Genitive	vayiṣyataḥ	vayiṣyatoḥ	vayiṣyatām
Locative	vayiṣyati	vayiṣyatoḥ	vayiṣyatsu

Compound vayiṣyat -

Adverb -vayiṣyantam