30 verses have
If
in Edition Clear Qur'an by Talal Itani / Ash-Shu'araa (The Poets)

26:2These are the Verses of the Clarifying Book.

26:4If We will, We can send down upon them a sign from heaven, at which their necks will stay bent in humility.

26:5No fresh reminder comes to them from the Most Merciful, but they turn their backs at it.

26:7Have they not seen the earth, and how many beautiful pairs We produced therein?

26:9Most surely, your Lord is the Almighty, the Merciful.

26:24He said, “The Lord of the heavens and the earth, and everything between them, if you are aware.”

26:28He said, “Lord of the East and the West, and everything between them, if you understand.”

26:29He said, “If you accept any god other than me, I will make you a prisoner.”

26:30He said, “What if I bring you something convincing?”

26:31He said, “Bring it, if you are being truthful.”

26:38So the magicians were gathered for the appointment on a specified day.

26:40That we may follow the magicians, if they are the winners.”

26:41When the magicians arrived, they said to Pharaoh, “Is there a reward for us, if we are the winners?”

26:49He said, “Did you believe in Him before I have given you permission? He must be your chief, who taught you magic. You will soon know. I will cut off your hands and feet on opposite sides, and I will crucify you all.”

26:68Surely, your Lord is the Almighty, the Merciful.

26:102If only we could have another chance, we would be among the faithful.”

26:104Your Lord is the Almighty, the Merciful.

26:113Their account rests only with my Lord, if you have sense.

26:116They said, “If you do not refrain, O Noah, you will be stoned.”

26:122Your Lord is the Almighty, the Merciful.

26:140Your Lord is the Almighty, the Merciful.

26:154You are nothing but a man like us. So bring us a sign, if you are truthful.

26:155He said, “This is a she-camel; she has her turn of drinking, and you have your turn of drinking—on a specified day.

26:159Your Lord is the Almighty, the Merciful.

26:175Your Lord is the Almighty, the Merciful.

26:187So bring down on us pieces from the sky, if you are truthful.”

26:191Your Lord is the Almighty, the Merciful.

26:205Have you considered: if We let them enjoy themselves for some years.

26:216And if they disobey you, say, “I am innocent of what you do.”

26:217And put your trust in the Almighty, the Merciful.