present progressive

[hela]

Dear teachers,

Would you please explain the use of the progressive in the last verb of the following sentence.


It was raining when I woke up last Saturday. It always rains when I am not working. → why not "when I do not work"?

Thanks a lot,
Hela

[Casiopea]

Dear teachers,

Would you please explain the use of the progressive in the last verb of the following sentence.


It was raining when I woke up last Saturday. It always rains when I am not working. → why not "when I do not work"?

Thanks a lot,
Hela

Possibly,

When I don't work, it always rains.
(cause and effect)

When I'm not working, it always rains.
(It always rains during this period: when I'm not working.)