"Complicated" is in the eye of the beholder. It looks daunting to someone who didn't grow up using a heavily inflected language, but also consider the reverse direction.
"A reading room" means a room that is for reading. "A reading person" means a person who is reading. And "Reading the room" means, well, the act of reading the room. Or it could be used as an adverbial prose to modify the following phrase: "Reading the room, I stopped right there." Or it could be part of a progressive: "He was merely reading the room." Don't confuse it with "What he did was merely reading the room," which must be parsed differently.
All from a single form of a verb. You just have to figure out which one is intended from context.
...and the point is, it's just so natural to a native English speaker that they don't even stop and think about it!
"A reading room" means a room that is for reading. "A reading person" means a person who is reading. And "Reading the room" means, well, the act of reading the room. Or it could be used as an adverbial prose to modify the following phrase: "Reading the room, I stopped right there." Or it could be part of a progressive: "He was merely reading the room." Don't confuse it with "What he did was merely reading the room," which must be parsed differently.
All from a single form of a verb. You just have to figure out which one is intended from context.
...and the point is, it's just so natural to a native English speaker that they don't even stop and think about it!