Usage Examples Present Continuous vs. Present Perfect Continuous

• You are sweaty! Have you been exercising? -
• I can't talk now, I am studying. -
• My brother is not sleeping, he is playing now. -
• I have not been dancing for half a year. -
• I have been working here for five years. -
• Call me later, I am riding my bike. -
• We are painting the walls in the bedroom now. -
• Paul is not smiling, is he okay? -
• What book are you reading now? -
• Be quiet, Alice is sleeping. -
• Are you leaving? It's only nine pm. -
• My son has been writing his essay for two hours. -
• Mum is cooking, go and help her. -
• How long has John been playing chess? -
• My fiancee has not been talking to me for three days. -
• My daughter has not been studying maths for a month. -
• Are you using my phone? Give it back to me! -
• My sister is so tired, she has been studying all morning. -
• Who is knocking on the door? I'll open. -
• I have not been crying for an hour. -