Usage Examples Present Perfect vs. Present Perfect Continuous

• I have already done my homework . -
• Luke has written four books. -
• Where have I left my bag? -
• Julie has been working on this report since eight am. -
• Have you been reading this paper for two hours? -
• I have been writing emails for three hours. -
• We haven't been to Sweden yet. -
• Has Ruth ever cooked for you? -
• They have been studying philosophy for five years. -
• Mary has been to Canada twice. -
• There has been an accident. -
• Mary and Jane have been travelling since July. -
• I've been reading the book you gave me for two weeks. -
• You are all sweaty! What have you been doing? -
• I haven't seen Lisa today. -
• They have never met Alex. -
• Has your cousin graduated from the university yet? -
• How long have you been sitting here? -
• Grandma has been cooking all day. -
• Have you ever met Helen? -