Usage Examples Present Perfect vs. Present Perfect Continuous

• I have already done my homework . -
• Luke has written four books. -
• How long have you been sitting here? -
• I have been writing emails for three hours. -
• They have been studying philosophy for five years. -
• You are all sweaty! What have you been doing? -
• I have been working here for three months. -
• They have been waiting for us for thirty minutes. -
• Have they ever been to Scotland? -
• There has been an accident. -
• Why have we been waiting for her for forty minutes? -
• They have never met Alex. -
• Has your mother been jogging? She looks fit! -
• Have you only been waiting for an hour here? -
• How long has Nataly been calling you? -
• I haven't been swimming since May. -
• I haven't seen Lisa today. -
• Has Dan submitted the report yet? -
• My best friend hasn't been talking to me for a week. -
• Ann hasn't read this paper yet. -