Because "in" is "in" ,and "-ing" is "-ing".Originally Posted by tdol
You wouldn't say like when you see "in -ing" structure in a sentence, you come up with hundreds of usage for "in -ing", apply each of them according to the context, and decide which usage it should be by a process of elimination. That's quite unlikely, I think.
My hypothesis is, "in -ing" has a core meaning or "image", and the core image is "colored" by its context. As a rusult, it has a specific meaning.
I just want to know the core image, if there is any.