Declension table of ?inviṣyat

Masculine	Singular	Dual	Plural
Nominative	inviṣyan	inviṣyantau	inviṣyantaḥ
Vocative	inviṣyan	inviṣyantau	inviṣyantaḥ
Accusative	inviṣyantam	inviṣyantau	inviṣyataḥ
Instrumental	inviṣyatā	inviṣyadbhyām	inviṣyadbhiḥ
Dative	inviṣyate	inviṣyadbhyām	inviṣyadbhyaḥ
Ablative	inviṣyataḥ	inviṣyadbhyām	inviṣyadbhyaḥ
Genitive	inviṣyataḥ	inviṣyatoḥ	inviṣyatām
Locative	inviṣyati	inviṣyatoḥ	inviṣyatsu

Compound inviṣyat -

Adverb -inviṣyantam