If you say that someone takes you for granted, you are complaining that they benefit from your help, efforts, or presence without showing that they are grateful.
take someone for granted就是指把别人的付出看作是理所当然，不懂感激。
例句：He felt that he was taken for granted.
If you take something for granted, you believe that it is true or accept it as normal without thinking about it.
而take something for granted指把东西看作理所当然，不懂珍惜。
例句：Teenagers tend to take what they own for granted.