Usage Examples Present Perfect

• What have I written? -
• Have you tested it? -
• I haven't taken anything! -
• I've locked it. -
• I haven't thought about the format. -
• I've never seen this girl. -
• I have solved it. -
• I've never lived here! -
• He has committed a crime. -
• I have ordered some books. -
• Have you seen the castle? -
• I haven't seen any bread. -
• Have you completed your task? -
• This book has changed my life! -
• I haven't lost faith. -
• I have booked a lovely hotel. -
• It has been a long day. -
• I've caught you! -
• I have signed it. -
• Have you learned it? -