tense

While I (1) (shop) in the supermarket, three robbers (2) (come) in. One of the robbers (3) (point) his gun to the cashier and (4) (call) her to put all the money into their bags. While she (5) (do) so, the other robbers (6) (put) the food and drinks into their bags. When I (7) (see) that, I secretly (8) (send) an SMS to my boyfriend and (9) (tell) him to call the police. As soon as they (10) (leave), the police (11) (arrive). The robbers (12) (run) away quickly. The police (13) (try) to stop them by shooting at them. One robber was injured. He (14) (die) while he (15) (go) to the hospital.