1. He is moving in the seat.

2. He is moving on the seat.
3. He is moving at the seat.
[Which prepositions can we use? Are the three have the same meaning? Which one is commonly used?]

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asked by rfvv
yesterday at 2:27am
If he's wiggling around, then you'd most likely use "in" or "on." I can't think of any circumstance when you'd use "at."

Remember, "in" usually means "inside" and "on" usually means "onto" or "on the top of."

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👤 Writeacher
yesterday at 8:10am
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Thank you for your help.
4. He is reading a book in the seat.
5. He is reading a book on the seat.
6. He is reading a book at the seat.
[Are they all right? Does #6 mean that he is reading a book next to the seat?(on the floor)]

In my opinion, the only wording that is correct is some variation of these:

He is reading a book in the chair.
He is reading a book on the bench.
He is reading a book at the library.
He is reading a book as he sits on the floor.

The word "seat" implies he is on a bus or in a car or something
The preposition "at" implies he is somewhere (library, home, or ... ), but we don't know where or what he is sitting on.