For or Since Gary5 months ago For is the length of a period of time. Since is the start of a period of time. Read more
During or While Gary5 months ago No time period with during. While for two actions at the same time. Read more
By or Until Gary5 months ago Until for the continuing activity. By for the finish of the activity. Read more
At night or in the night? Gary7 months ago At night talks about every night. In the night talks about a specific night. Read more
About or On Gary12 months ago About talks about simple or general subjects. On suggests that a book, talk, etc is more serious or academic. Read more
