The waiter hasn’t bought the coffee . . . . . . . . I’ve been here an hour already.

April 15, 2024 by rawan239

or be done in the future. In this case, it is not clear whether the waiter will bring the coffee at all, so “yet” is not the best choice. The word “up” is used to indicate that something has been completed or finished. In this case, the waiter has not completed the task of bringing the coffee, so “up” is not the best choice. The word “till” is used to indicate a point in time until which something will happen or be done. In this case, it is not clear when the waiter will bring the coffee, so “till” is not the best choice.