Let's say you are describing your future house's space.
Spaciousness is key so I would not have much problem/problems moving around places in the house.
I know that ''problem'' is countable noun, but it seems that the ''problem'' as singular fits the most in the context. Which should I use then?
Best Answer
While this context certainly sounds like "problem" is an uncountable noun, this is actually a colloquialism short for:
Either that or it's mixing this with the other common phrase, "much trouble", where "trouble" is an uncountable noun.
That being said, "problem" can apply to all of the individual problems associated with some challenge, or the collective problem associated with the challenge as a whole. So, depending on how you want to phrase your statement, any of the following are fine:
Note we don't usually say:
although I couldn't say if this is because it doesn't make sense, or it's just not idiomatic.