Usage Examples Present Perfect vs. Present Perfect Continuous

• Have you ever met Helen? -
• Has Ruth ever cooked for you? -
• Has your cousin graduated from the university yet? -
• What countries has John ever been to? -
• There has been an accident. -
• Why have we been waiting for her for forty minutes? -
• Have they ever been to Scotland? -
• Julie has been working on this report since eight am. -
• Who have you been talking to for an hour? -
• How long have you been sitting here? -
• I haven't been playing hockey for a long time. -
• Have you been reading this paper for two hours? -
• I have been writing emails for three hours. -
• Mary has been to Canada twice. -
• I haven't seen Lisa today. -
• Charles has been teaching at the university since August. -
• Where have I left my bag? -
• I have already cooked the dinner. -
• Mary and Jane have been travelling since July. -
• Have you only been waiting for an hour here? -