Staines 1972…PROBABLY ; captain who couldn’t manage the trident and stuck the autopilot in early ordered my mate, who was only partly trained and flying illegally due to industrial action, to « put it in » with reference to the new cleared altitude which was the captain’s duty. Pilot monitoring! Duty was to select the droop in which my mate did which led to an almost instant stick push, death rattle and autopilot disconnect plus a lot of flashing lights = game over.
Even with two brits who didn’t speak any foreign tongues operating a British aircraft with British SOPs in English it can go wrong - to add another language with associated dialects, which I presume your’s is French, is ludicrous.
I’ve been fortunate in having instruction in 4 continents by many foreigners and different flying disciplines but to mix two languages!
There are many forms of French, not only the differences between Paris, Provance, Alsace and Britany but add Belgium, Switzerland, Canada and the DOMTOMs ..absolute nightmare.