1. Used to indicate being together or being involved:
Ex: I ordered a sandwich with a drink.
He was with his friend when he saw me.
2. Used to indicate "having":
Ex: I met a guy with green eyes.
Were you the one talking with an accent?
3. Used to indicate "using":
Ex: I wrote a letter with the pen you gave me.
This is the soup that I made with rice and barley.
4. Used to indicate feeling:
Ex: I am emailing you with my sincere apology.
He came to the front stage with confidence.