3 verses have
only
in Edition Clear Qur'an by Talal Itani / Al-Anbiyaa (The Prophets)

21:27They never speak before He has spoken, and they only act on His command.

21:36When those who disbelieve see you, they treat you only with ridicule: “Is this the one who mentions your gods?” And they reject the mention of the Merciful.

21:39If those who disbelieve only knew, when they cannot keep the fire off their faces and off their backs, and they will not be helped.