Usage Examples Present Perfect vs. Present Perfect Continuous

• Mary has been to Canada twice. -
• Have you ever met Helen? -
• Luke has written four books. -
• How long have you been sitting here? -
• I have lost my phone and I can't call you. -
• I've been reading the book you gave me for two weeks. -
• What is the tastiest food you have ever tried? -
• I haven't seen Lisa today. -
• Has your mother been jogging? She looks fit! -
• There has been an accident. -
• I have never had a pet. -
• Erica has not been listening to you all this time. -
• Has Ruth ever cooked for you? -
• We haven't been to Sweden yet. -
• I have been writing emails for three hours. -
• Why has nobody taken our order yet? -
• Recently Josh hasn't been doing the work. -
• How many pages have you written today? -
• Has your cousin graduated from the university yet? -
• I have already done my homework . -