Student or Learner
I'd like to know wether there is difference between "all round my room" and "all over my room".
Besides Can I put the preposition "in" and say all round in my room?
It all depends on what you want to say:
There were posters all round my room
My sisters put the pictures all round my room
I chased the mouse all round my room
I like to have good lighting all over my room
The coca cola sprayed all over my room
I chased the mouse all over my room
The insertion of "in" changes the structure of the sentence:
The mess was [all over] [in my room] = All my clothes, books and cds were scattered everywhere[in my room].