Usage Examples Present Perfect vs. Present Perfect Continuous

• I have already done my homework . -
• Luke has written four books. -
• What countries has John ever been to? -
• Ann hasn't read this paper yet. -
• I haven't seen Lisa today. -
• My best friend hasn't been talking to me for a week. -
• Charles has been teaching at the university since August. -
• How long have you been sitting here? -
• I have been working here for three months. -
• You are all sweaty! What have you been doing? -
• Have you ever met Helen? -
• Why have we been waiting for her for forty minutes? -
• We haven't been to Sweden yet. -
• I haven't been swimming since May. -
• Has Max been exercising lately? He looks great! -
• My husband has started a new painting this week. -
• Mary has been to Canada twice. -
• Julie has been working on this report since eight am. -
• I have just left my job. -
• Who have you been talking to for an hour? -