I'm in/at/on
Describes an action you are doing. Most commonly, you would use the word 'in' when entering a physical location such as a room or a building. Here are some examples: " I'm in the shower. " " I'm in the lobby. " " I'm in a car. " " I'm in a house. " " I'm in a school. " Using the word 'at' helps tell someone where you currently are. The difference between 'at' and 'in' is that the physical location is general. Here are some examples: " I'm at the grocery. " " I'm at the mall. " " I'm at the doctor's office. " " I'm at the park. " " I'm at the airport. " However, in some cases you can use 'at' and 'in' interchangeably. Here are some examples: " I'm at the mall. " " I'm in the mall. " " I'm at the park. " " I'm in the park. " " I'm at t...