Declension table of ?tasiṣyat

Masculine	Singular	Dual	Plural
Nominative	tasiṣyan	tasiṣyantau	tasiṣyantaḥ
Vocative	tasiṣyan	tasiṣyantau	tasiṣyantaḥ
Accusative	tasiṣyantam	tasiṣyantau	tasiṣyataḥ
Instrumental	tasiṣyatā	tasiṣyadbhyām	tasiṣyadbhiḥ
Dative	tasiṣyate	tasiṣyadbhyām	tasiṣyadbhyaḥ
Ablative	tasiṣyataḥ	tasiṣyadbhyām	tasiṣyadbhyaḥ
Genitive	tasiṣyataḥ	tasiṣyatoḥ	tasiṣyatām
Locative	tasiṣyati	tasiṣyatoḥ	tasiṣyatsu

Compound tasiṣyat -

Adverb -tasiṣyantam