posted by John .
1. How much time do you spend in
2. How much time do you spend on
3. How much time do you spend on
4. How much time do you spend in
(It is about the use of prepositions. Which preposition should I use? Which sentence is correct?)
They could all be correct. In #1 and #2 you could even leave the prepositions out.
The difference could be: in #3 you could be merely planning games but in #4 you would have to be playing.