[That] you will surely experience state after state. (84:19)

Almuntakhab Fi Tafsir Alquran Alkarim

That you people shall ride from one circumstance to another and from one mode of existence to another and from a state of things, in which events stand disposed at a particular time, to another, and from one world to another; for in the actual system of things man changes, from one condition to another. He is governed by the inherent dominating power by which actions and feelings are determined

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(84:19) you shall proceed onwards from stage to stage. *11

[That] you will surely experience state after state. meaning

*11) That is, "You will not remain in one and the same state, but will have to pass through countless stages gradually, from youth to old age, from old age to death, from death to barzakh (the intermediary state between death and Resurrection), from barzakh to Resurrections from Resurrection to the Plain of Assembly, then to the Reckoning, and then to the meting out of rewards and punishments. An oath has been sworn by three things to confine this:
(1) by the twilight,
(2) by the darkness of night and the gathering together in it of aII those human beings and animals who remain scattered in the day time, and
(3) by the moon's passing through different phases to become full. These are some of those things which testify that rest and stillness is unknown in the universe in which man lives. There is a continuous and gradual change taking place everywhere. Therefore, the disbelievers are wrong in thinking that life comes to an end after man has breathed his last.
 

[That] you will surely experience state after state. meaning in Urdu

تم کو ضرور درجہ بدرجہ ایک حالت سے دوسری حالت کی طرف گزرتے چلے جانا ہے