Usage Examples Present Perfect vs. Present Perfect Continuous

• How long have you been sitting here? -
• Who have you been talking to for an hour? -
• Ann hasn't read this paper yet. -
• Why has nobody taken our order yet? -
• Has Ruth ever cooked for you? -
• Have they ever been to Scotland? -
• They have been waiting for us for thirty minutes. -
• Have you ever met Helen? -
• They have been studying philosophy for five years. -
• Charles has been teaching at the university since August. -
• Grandma has been cooking all day. -
• I have already cooked the dinner. -
• Has your cousin graduated from the university yet? -
• There has been an accident. -
• Has your mother been jogging? She looks fit! -
• Have you been crying? Your eyes are red. -
• My sister has not come back yet. -
• They have never met Alex. -
• Where have I left my bag? -
• I've been reading the book you gave me for two weeks. -