Most of French... No, some yes.
You cannot get by in France without knowing French. How ever italians and Spanish often simply speak each others language and get by 100%, it's wh they vacation in the same spots.
Discussion
I'm trying to say the difference manifest after like a year of study.
Once an English man studies French (or spanish) for 1 year it will be fairly easy to get by.
He automatically gains comprehension of something like 60 percent of the nouns.
Once he has a feel for how the language works.
Study Chinese or Japanese for one year and then see how much you understand.
Basically nothing.