Declension table of ?yakṣiṣyat

Masculine	Singular	Dual	Plural
Nominative	yakṣiṣyan	yakṣiṣyantau	yakṣiṣyantaḥ
Vocative	yakṣiṣyan	yakṣiṣyantau	yakṣiṣyantaḥ
Accusative	yakṣiṣyantam	yakṣiṣyantau	yakṣiṣyataḥ
Instrumental	yakṣiṣyatā	yakṣiṣyadbhyām	yakṣiṣyadbhiḥ
Dative	yakṣiṣyate	yakṣiṣyadbhyām	yakṣiṣyadbhyaḥ
Ablative	yakṣiṣyataḥ	yakṣiṣyadbhyām	yakṣiṣyadbhyaḥ
Genitive	yakṣiṣyataḥ	yakṣiṣyatoḥ	yakṣiṣyatām
Locative	yakṣiṣyati	yakṣiṣyatoḥ	yakṣiṣyatsu

Compound yakṣiṣyat -

Adverb -yakṣiṣyantam