2 verses have
fail
in Edition Clear Qur'an by Talal Itani / Hud (Hud)

11:14But if they fail to answer you, know that it was revealed with God’s knowledge, and that there is no god but He. Will you then submit?

11:20These will not escape on earth, and they have no protectors besides God. The punishment will be doubled for them. They have failed to hear, and they have failed to see.