Sentence examples for in upon from inspiring English sources

The phrase "in upon" is grammatically correct and can be used in written English, although it may be considered more formal and less commonly used compared to other prepositional phrases.
One context in which "in upon" can be used is to indicate a sudden or unexpected event or occurrence. For example: "In upon entering the room, she noticed a strange odor." The phrase implies that the event of noticing the strange odor happened immediately upon entering the room. Another context in which "in upon" can be used is to express a sense of intrusion or invasion. For example: "The soldiers barged in upon the peaceful village, causing chaos and destruction." Here, the phrase emphasizes the abrupt and unwelcome arrival of the soldiers. Overall, "in upon" can be used in written English to convey a swift and abrupt action or to emphasize a sense of intrusion or disruption. However, it should be used sparingly and appropriately in more formal or literary writing.