Usage Examples Present Perfect

• You haven't chosen a colour. -
• What have we lost? -
• Have I reassured you? -
• He's become a good friend. -
• I haven't seen a doctor. -
• My mother has explained it. -
• You've helped me. -
• You haven't heard the news. -
• You've not heard the question! -
• I've signed the papers. -
• I have solved it. -
• Have you finished it? -
• I've missed it. -
• Have you made your choice? -
• This book has changed my life! -
• I have never seen a mountain. -
• It's been a quick lesson. -
• They've fired him. -
• You've written some books. -
• I've lost it! -