Usage Examples Present Perfect

• You've written some books. -
• I've never had a friend. -
• I have proved them. -
• He has committed a crime. -
• You haven't done anything. -
• Have you taken your medication? -
• Have you seen my laptop? -
• I have taken a little holiday. -
• We haven't paid the bill. -
• I have signed it. -
• I've never worn a watch. -
• Have you considered my offer? -
• Have you hidden it? -
• I have ordered some good wine. -
• I've begun a new semester. -
• I haven't taken anything! -
• The girl has done her homework. -
• You have helped her. -
• Have you seen my bird? -
• Have they found him? -