Usage Examples Present Continuous vs. Present Perfect Continuous

• Who is knocking on the door? I'll open. -
• My wife is working on her new project at the moment. -
• How long has John been playing chess? -
• I have not been doing sports for two years. -
• Paul is not smiling, is he okay? -
• I have been waiting for you all day. -
• You are sweaty! Have you been exercising? -
• My brother is not sleeping, he is playing now. -
• James is playing football at the moment. -
• Are you using my phone? Give it back to me! -
• I can't talk now, I am studying. -
• I have not been crying for an hour. -
• Is your cousin coming to the party? -
• I am reading now. -
• My dad has been reading this book for a month. -
• You have been eating a lot recently. -
• I have been working here for five years. -
• My daughter has not been studying maths for a month. -
• I have been driving for six hours without stopping. -
• You are so dirty! What have you been doing? -