Usage Examples Present Perfect vs. Present Perfect Continuous

• Ann hasn't read this paper yet. -
• I have never had a pet. -
• How long has Nataly been calling you? -
• How long have you been sitting here? -
• They have been studying philosophy for five years. -
• I have already done my homework . -
• I haven't been playing hockey for a long time. -
• Luke has written four books. -
• I have been working here for three months. -
• Has Ruth ever cooked for you? -
• I have already cooked the dinner. -
• You are all sweaty! What have you been doing? -
• What is the tastiest food you have ever tried? -
• Julie has been working on this report since eight am. -
• Have you ever met Helen? -
• I haven't seen Lisa today. -
• My sister has not come back yet. -
• Jack has been decorating the house all summer. -
• Have you only been waiting for an hour here? -
• How many pages have you written today? -