- Hey, how are you doing? (Present continous)
- I'm good! I was just heading towards the park. You? (I'm good - present simple / was heading - past continous)
- Really? I haven't been there for ages. Can I come too? (I haven't been - Present perfect simple)
- Of course! I knew I was gonna find someone to go along with on my way there! ( I knew - past simple)