Usage Examples Present Perfect vs. Present Perfect Continuous

• Ann hasn't read this paper yet. -
• Julie has been working on this report since eight am. -
• I haven't seen Lisa today. -
• What countries has John ever been to? -
• Grandma has been cooking all day. -
• I haven't been swimming since May. -
• Have you ever met Helen? -
• Have you been reading this paper for two hours? -
• Have you only been waiting for an hour here? -
• Has Max been exercising lately? He looks great! -
• They have never met Alex. -
• My best friend hasn't been talking to me for a week. -
• We haven't been to Sweden yet. -
• Mary and Jane have been travelling since July. -
• Has Ruth ever cooked for you? -
• Where have I left my bag? -
• They have been waiting for us for thirty minutes. -
• I have already done my homework . -
• I have never had a pet. -
• My sister has not come back yet. -