Usage Examples Present Perfect

• I have protected her. -
• What have I accomplished? -
• We've seen the workers. -
• I have asked them. -
• They've attacked us. -
• I've never seen the sunrise. -
• Have you discovered it? -
• Have you checked your e-mail? -
• Have you tested it? -
• Have you notified the police? -
• I have ordered some good wine. -
• I've never had a dog. -
• I've never seen the ocean! -
• They've fired him. -
• Have I troubled you? -
• You have not considered the alternative. -
• You've preserved it. -
• Have you answered the letter? -
• They've changed me. -
• I've underestimated you. -