Presente Prefecto 1. The electrician (repair) has repaired the lighting system. N= the electrician has not repaired the lighting system. I= has the electrician repaired the lighting system? 2. A thief (steal) has stolen Mary’s purse. N= A thief has not stolen Mary’s purse. I= has A thief stolen Mary’s purse? 3. They (accept) have accepted credit cards. N= They have not accepted credit cards. I= Have they accepted credit cards? 4. We (sing) have sung different songs at the camp. N= We have not sung different songs at the camp. I= Have we sung different songs at the camp? 5. The player (hit) has hit me with the ball. N= The player has not hit me with the ball. I= Has the player hit me with the ball? 6. The students (print) have printed the magazine. N= The students have not printed the magazine. I= Have the students printed the magazine? 7. The children (swim) have swum in the lake. N= The children have not swum in the lake. I= have the children swum in the lake? 8. The inspector (show) have showed us the secret files. N= The inspector have not showed us the secret files. I= Have the inspector showed us the secret files? 9. Susan (get) has got $50 as a prize. N= Susan has not got $50 as a prize. I= Has Susan got $50 as a prize? 10. The passengers (watch) have watched many movies. N= The passengers have not watched many movies. I= Have the passengers watched many movies? 1. He (build) has built a new department. N= He has not built a new department. I= Has he built a new department? 2. Jonathan (buy) has bought a new car and a new house. N= Jonathan has not bought a new car and a new house. I= Has Jonathan bought a new car and a new house? 3. The president (visit) has visited the museum. N= The president has not visited the museum. I= Has the president visited the museum? 4. The secretary (ask) has asked the boss to sign the letters. N= The secretary has not asked the boss to sign the letters. I= Has the secretary asked the boss to sign the letters? 5. Sarah (work) has worked for a building company. N= Sarah has not worked for a building company. I= Has Sarah worked for a building company? 6. The workers (clean) have cleaned the theatre. N= The workers have not cleaned the theatre. I= Have the workers cleaned the theatre? 7. Jane (cut) has cut her finger. N= Jane has not cut her finger. I= Has Jane cut her finger? 8. Frank (fix) has fixed his bicycle. N= Frank has not fixed his bicycle. I= Has Frank fixed his bicycle? 9. Peter (eat) has eaten a lot of sandwiches. N= Peter has not eaten a lot of sandwiches. I= Has Peter eaten a lot of sandwiches? 10. My brothers (spend) has spent their holidays abroad. N= My brothers has not spent their holidays abroad. I= Has my brothers spent their holidays abroad?