1. Maybe/ may be
(1) maybe是副詞，意思是大概，也許，常用作狀語。
Maybe you put it in your bag.也許你把它放在包裏了。
Will he come tomorrow?Maybe not. 他明天來嗎?也許不。
(2) may be相當於是情態動詞may與be動詞搭配一起作謂語，意思是也許是，可能是。
It may be 9:00 when they arrive.他們可能於九點到達。
The man may be a lawyer. 那人也許是律師。
2. borrow / lend/ keep/ use
(1) borrow表示的`是從別人那裏借來東西，即我們通常所說的借進來。
We often borrow books from our school library.我們經常從學校圖書館借書。
I borrowed this dictionary from my teacher. 我從老師那兒借來了這本字典。
borrow是一個瞬間完成的動作，因此不能與時間段連用。
You can borrow my recorder for three days. ( 錯誤 )
I have borrowed this book for only one week. ( 錯誤 )
(2) lend表示的是把自己的東西借給別人，即我們通常所說的借出去。
Thank you for lending me your bike.謝謝你把自行車借給我。
He often lends money to his brother.他經常借錢給他弟弟。
