Usage Examples Present Perfect

• This thing has changed my life. -
• Have you contacted the embassy? -
• Have you counted it? -
• What have you planned? -
• I've been completely frank. -
• How much have I done? -
• We haven't left the camp. -
• I have answered them! -
• I've never had an adventure. -
• Have you seen this man? -
• You haven't seen a dog. -
• Have you considered it? -
• You've ruined it. -
• Have you forgotten me? -
• You have never learned enough. -
• I have not changed since then. -
• I have been very careful. -
• Have you ever been to Africa? -
• I've never seen this girl. -
• We haven't made a decision. -