I always carried an extra mask on my belt, in the case of mine breaking.
I thought maybe it could end in "break". Sorry if it's obvious, I'm not a native speaker.
I always carried an extra mask on my belt, in the case of mine breaking.
I thought maybe it could end in "break". Sorry if it's obvious, I'm not a native speaker.
In this sentence, I'd replace everything after the comma with "in case mine were to break". Your usage is incorrect.
It is not correct. “In the case of” sounds awkward. @HotLicks is right. I always carried an extra mask on my belt, in case mine broke.