7 verses have
used
in Edition Clear Qur'an by Talal Itani / As-Saaffaat (Those drawn up in Ranks)

37:21“This is the Day of Separation which you used to deny.

37:22Gather those who did wrong, and their mates, and what they used to worship.

37:28They will say, “You used to come at us from the right.”

37:39And you will be repaid only for what you used to do.

37:51One of them will say, “I used to have a friend.

37:52Who used to say, “Are you of those who believe?

37:167Even though they used to say.