Contracted form of -다고 해요. Used to report what someone said or what one heard in a casual/polite way. Combines the quotative -다고 with 하다 (to say).

• •Present (action): "간대요" (They say they're going)
• •Past: "갔대요" (They say they went)
• •Casual: "간대" (I heard they're going)