Usage Examples Present Perfect vs. Present Perfect Continuous

• Why have we been waiting for her for forty minutes? -
• Has Dan submitted the report yet? -
• My sister has not come back yet. -
• How many pages have you written today? -
• Mary and Jane have been travelling since July. -
• Charles has been teaching at the university since August. -
• Has Ruth ever cooked for you? -
• I haven't been swimming since May. -
• I have been working here for three months. -
• Has your mother been jogging? She looks fit! -
• I've been reading the book you gave me for two weeks. -
• They have never met Alex. -
• Have you been reading this paper for two hours? -
• Luke has written four books. -
• Mary has been to Canada twice. -
• There has been an accident. -
• Has your cousin graduated from the university yet? -
• Ann hasn't read this paper yet. -
• Have they ever been to Scotland? -
• I haven't been playing hockey for a long time. -