4 verses have
think
in Edition Clear Qur'an by Talal Itani / Al-Kahf (The Cave)

18:18You would think them awake, although they were asleep. And We turned them over to the right, and to the left, with their dog stretching its paws across the threshold. Had you looked at them, you would have turned away from them in flight, and been filled with fear of them.

18:35And he entered his garden, wronging himself. He said, “I do not think this will ever perish.”

18:36“And I do not think the Hour is coming. And even if I am returned to my Lord, I will find something better than this in return.”

18:102Do those who disbelieve think that they can take My servants for masters instead of Me? We have prepared Hell for the hospitality of the faithless.