There is an entertaining video "If Americans spoke like French" https://www.youtube.com/shorts/DFgJVk-9QG0 where French is overly literally translated into English, so a sentence might be "Sorry, what is this that you have said?" (instead of "I'm sorry, what did you say?")
I wonder if there is a linguistics term meaning "the way people speak" that could be properly applied to the above situation.
For example,
- Grammar is different between these two languages.
- The spelling varies, between these two dialects.
- ___ is different, between these two languages.
where ___ means something like "the way people speak".
In fact, this "the way people speak" adds complexity to language learning, since you cannot simply translate word-for-word. Entirely different expressions are required.