In fact i didn’t tested this way. But i dont think that the reverse gear was in. Also, you might look at this: The gear lever was really « wiggly » and had a lot of play. As you can see, it’s in a very bad shape. The place where the gear lever sits is also very rusty.
In the few next weeks, i was planning to get the motor out of the car for maintenance purposes. It will be easier for me to clean the engine and the gear box (Also the engine bay). Thanks for your advices.