The first one should be "she was sitting", and we'd use it to express someone is "actively" or willingly sitting (on a chair, on the floor, etc.). The second one would imply someone else guided you to your seat (like a waiter in a restaurant), or compelled you to sit down (like a teacher to a pupil). Hope it helps!

What's the difference between: "she was sitting" and "she was seated"? She was sitting is past continuous of the verb sit. Seated is an adjective. She was, seated. describes someone who was sitting down. Despite what some dumb internet programs will tell you seated is not a part of a verb every major dictionary will tell you that seated is an adjective specially the Oxford dictionary.

She was seating is always incorrect, but you could say 'she was seated next to the governor's wife' for instance, which describes the layout of the guests at the table. if you said 'she was sitting next to the governor's wife' that would describe what she was doing at that moment which i think is what you are getting at

"She was seating" is incorrect English. You would never use it. Did you mean "she was sitting"?