Usage Examples Present Perfect

• He hasn't been home for two days. -
• They've betrayed you. -
• Have you begun an investigation? -
• Have you notified the police? -
• I have not said so. -
• What have I learned? -
• Have you used it? -
• You've caught them. -
• I haven't eaten yet. -
• I have found him! -
• Have you seen her website? -
• I've hidden it! -
• Have you considered it? -
• It has been a strange day. -
• Have you seen my laptop? -
• Have they forgotten us? -
• We haven't heard any news. -
• You have written a fine book! -
• Have you called the doctor? -
• You've convinced me. -