This is the 8671st most frequent Korean word.
가져올
"가져올" means "to bring" or "to fetch."
Here, '가져올게요' is used to describe the speaker's intention to bring an item (a book) from somewhere (home).
저는 집에서 책을 가져올게요.
I will bring the book from home.
In this sentence, '가져올 수 있나요?' asks about the ability or possibility of bringing certain items (materials).
내일 회의에 자료를 가져올 수 있나요?
Can you bring the materials for tomorrow's meeting?
'가져와야 해요' expresses a necessity to bring something (an umbrella) due to a conditional situation (expected rain).