'Cannot' in the Bible

All things are full of weariness; man cannot utter it : the eye is not satisfied with seeing, nor the ear filled with hearing.

That which is crooked cannot be made straight; and that which is wanting cannot be numbered.

He hath made everything beautiful in its time: also he hath set eternity in their heart, yet so that man cannot find out the work that God hath done from the beginning even to the end.

then I beheld all the work of God, that man cannot find out the work that is done under the sun: because however much a man labor to seek it out, yet he shall not find it; yea moreover, though a wise man think to know it, yet shall he not be able to find it.