Mostly irrelevant unfortunately, because the French will expect you to speak French once you are in France. I've experienced this many times in Paris among French people I know can speak English well enough to have a conversation.
You will be able to get by just fine in Paris for things like restaurants and hotels, but as soon as you have to deal with the government in any fashion, you absolutely must speak French.
In places other than Paris and the tourist areas of some major cities, it will be very difficult if you don't speak any French.