Please help me understand which tense it is better to use in the following situation: Alan meets Steve by chance. Steve doesn't recognise Alan, but Alan does recognise Steve. Alan is Steve's sister's English teacher. Alan wants to get to know Steve and a dialogue starts:
- Hey, Steve, hello!
- Hello, do we know each other?
- I'm Alan – I ((teach) OR (am teaching)) your sister English.
What tense is it better to use (because I have found there to be different views on the situation)? It is a fact that Alan is an English teacher, so in theory I can use present simple. On the other hand it is a temporary situation (English classes will end sooner or later, everyone understands that). Although the action isn't happening at the time if speaking, the action is not still finished when they are talking. From this point of view, I should use present continuous.
Please tell me which tense would you choose. Also please explain your choice. Thanks for attention!