1. Inside or within something:
* In the house: The cat is inside the house.
* In the box: There's a present in the box.
* In a hurry: I'm in a hurry, I have to leave now.
2. Part of something:
* In the team: He's a valuable player in the team.
* In the book: The main character is in the book.
* In the world: This is a common problem in the world.
3. Engaged in an activity:
* In the shower: I'm just getting out of the shower.
* In the garden: She's working in the garden.
* In trouble: He's in trouble with the police.
4. A state or condition:
* In love: They're deeply in love.
* In pain: He's in pain after the accident.
* In shock: I was in shock when I heard the news.
5. A place or time:
* In the morning: We'll meet in the morning.
* In the city: I live in the city.
* In the future: What will the world be like in the future?
6. A direction:
* In the direction of: Look in the direction of the noise.
* In this way: Do it in this way.
7. A measurement:
* In inches: The table is 30 inches in length.
* In pounds: The package weighs 10 pounds.
It's important to note that the use of "in" can be complex and sometimes depends on the context. If you're unsure whether to use "in" or not, you can always check a dictionary or ask a native speaker.