Usage Examples Present Perfect vs. Present Perfect Continuous

• Why have we been waiting for her for forty minutes? -
• How long has Nataly been calling you? -
• I haven't been playing hockey for a long time. -
• Why has nobody taken our order yet? -
• I have been working here for three months. -
• I haven't seen Lisa today. -
• They have been studying philosophy for five years. -
• My sister has not come back yet. -
• There has been an accident. -
• Has your mother been jogging? She looks fit! -
• I've seen the film you recommened me. -
• Mary and Jane have been travelling since July. -
• Where have I left my bag? -
• Has Max been exercising lately? He looks great! -
• Luke has written four books. -
• Have you been reading this paper for two hours? -
• You are all sweaty! What have you been doing? -
• Ann hasn't read this paper yet. -
• I have already cooked the dinner. -
• How long have you been sitting here? -