Usage Examples Present Perfect vs. Present Perfect Continuous

• Has Ruth ever cooked for you? -
• They have been studying philosophy for five years. -
• Charles has been teaching at the university since August. -
• How long have you been sitting here? -
• Who have you been talking to for an hour? -
• They have never met Alex. -
• What is the tastiest food you have ever tried? -
• Recently Josh hasn't been doing the work. -
• Mary and Jane have been travelling since July. -
• Why has nobody taken our order yet? -
• What countries has John ever been to? -
• They have been waiting for us for thirty minutes. -
• Julie has been working on this report since eight am. -
• My sister has not come back yet. -
• There has been an accident. -
• Mary has been to Canada twice. -
• Erica has not been listening to you all this time. -
• I have lost my phone and I can't call you. -
• Grandma has been cooking all day. -
• My best friend hasn't been talking to me for a week. -