Declension table of ?tāpayiṣyat

Masculine	Singular	Dual	Plural
Nominative	tāpayiṣyan	tāpayiṣyantau	tāpayiṣyantaḥ
Vocative	tāpayiṣyan	tāpayiṣyantau	tāpayiṣyantaḥ
Accusative	tāpayiṣyantam	tāpayiṣyantau	tāpayiṣyataḥ
Instrumental	tāpayiṣyatā	tāpayiṣyadbhyām	tāpayiṣyadbhiḥ
Dative	tāpayiṣyate	tāpayiṣyadbhyām	tāpayiṣyadbhyaḥ
Ablative	tāpayiṣyataḥ	tāpayiṣyadbhyām	tāpayiṣyadbhyaḥ
Genitive	tāpayiṣyataḥ	tāpayiṣyatoḥ	tāpayiṣyatām
Locative	tāpayiṣyati	tāpayiṣyatoḥ	tāpayiṣyatsu

Compound tāpayiṣyat -

Adverb -tāpayiṣyantam