Thinking out loud:
So if you’re french,trying to figure out what true english way to say something would be, you don’t want to… you want to specifically avoid the kinds of mistake french speakers (you) tend to make because they are french. What a native english speaker might call frenglish.
You have access to native spanish and japanese speakers, you know they are making mistakes, and you know that some of their mistakes are made because of their native language.
One source of information is more fluent french speakers, they have overcome some obstacles unique to francophones, and they can point them out in less fluent speakers. This may give a pattern of errors indicating the kind of errors francophones tend to make in learning english. (especially if you can compare to known early errors in spanish/japanese speakers)
So, first look at what the near-fluent speakers of all nationalities agree on as english. Then look at the mistakes made by learners in various nationalities. This will give you a fairly empirical picture of what a strong french accent looks like. That should give you some hints about what a weak[slight] french accent would look like. Correct for that, and you’ll be closer to native english.
Thinking out loud: So if you’re french,trying to figure out what true english way to say something would be, you don’t want to… you want to specifically avoid the kinds of mistake french speakers (you) tend to make because they are french. What a native english speaker might call frenglish. You have access to native spanish and japanese speakers, you know they are making mistakes, and you know that some of their mistakes are made because of their native language.
One source of information is more fluent french speakers, they have overcome some obstacles unique to francophones, and they can point them out in less fluent speakers. This may give a pattern of errors indicating the kind of errors francophones tend to make in learning english. (especially if you can compare to known early errors in spanish/japanese speakers)
So, first look at what the near-fluent speakers of all nationalities agree on as english. Then look at the mistakes made by learners in various nationalities. This will give you a fairly empirical picture of what a strong french accent looks like. That should give you some hints about what a weak[slight] french accent would look like. Correct for that, and you’ll be closer to native english.