I joined a team in London not too long ago and at that time the boss was English, so English was the language always spoken at work. However, the boss recently left and now all my remaining co-workers feel that it is easier to communicate in French.
However, I don't speak French and feel excluded from the team. The only time they switch to English is when it is a topic concerning myself.
I have pointed out previously that I would like everyone to speak English if it's not a personal conversation, and at that time it was agreed that English would be what we would all speak if it's about business.
While this was briefly the case, it has now reverted back to French being the lingua franca of our team (no pun intended). I like the team otherwise and enjoy the work, but it worries me that I might miss out on important developments in the team, or just miss opportunities to contribute.
How can I resolve the situation politely? I am unlikely to be able to find time to start learning French.