Declension table of ?naviṣyat

Masculine	Singular	Dual	Plural
Nominative	naviṣyan	naviṣyantau	naviṣyantaḥ
Vocative	naviṣyan	naviṣyantau	naviṣyantaḥ
Accusative	naviṣyantam	naviṣyantau	naviṣyataḥ
Instrumental	naviṣyatā	naviṣyadbhyām	naviṣyadbhiḥ
Dative	naviṣyate	naviṣyadbhyām	naviṣyadbhyaḥ
Ablative	naviṣyataḥ	naviṣyadbhyām	naviṣyadbhyaḥ
Genitive	naviṣyataḥ	naviṣyatoḥ	naviṣyatām
Locative	naviṣyati	naviṣyatoḥ	naviṣyatsu

Compound naviṣyat -

Adverb -naviṣyantam