this subject is a part of semantics which itself is a part of linguistics (or of modal logic which itself is a part of language philosophy. The boundary between linguistics and language philosophy is fluid)
0 if it's their native language. Higher for understanding constituency, meaning, and structure for second languages if they want a more patterned system. Sentence structure doesn't necessarily mean you'll get the intended meaning correct, but you will have a better understanding of what errors you're making and why certain word forms appear in the places they do.
How many people think about this kind of thing when talking?
this subject is a part of semantics which itself is a part of linguistics (or of modal logic which itself is a part of language philosophy. The boundary between linguistics and language philosophy is fluid)
0 if it's their native language. Higher for understanding constituency, meaning, and structure for second languages if they want a more patterned system. Sentence structure doesn't necessarily mean you'll get the intended meaning correct, but you will have a better understanding of what errors you're making and why certain word forms appear in the places they do.