Usage Examples Present Perfect vs. Present Perfect Continuous

• Have you ever met Helen? -
• Mary has been to Canada twice. -
• I haven't been swimming since May. -
• Has your cousin graduated from the university yet? -
• I have never had a pet. -
• There has been an accident. -
• Grandma has been cooking all day. -
• Mary and Jane have been travelling since July. -
• My sister has not come back yet. -
• You are all sweaty! What have you been doing? -
• I have been writing emails for three hours. -
• Have they ever been to Scotland? -
• I haven't seen Lisa today. -
• Has Max been exercising lately? He looks great! -
• Ann hasn't read this paper yet. -
• They have been waiting for us for thirty minutes. -
• What countries has John ever been to? -
• My husband has started a new painting this week. -
• They have never met Alex. -
• Luke has written four books. -