Looking on the internet deeply has found these results:

he is not in his seat is the most popular phrase on the web.

He is not on his seat 13 results on the web	he is not in his seat 11,630 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
7 Dis 2015 ... KUALA LUMPUR: Veteran newsman and Najib Razak critic, Kadir Jasin described the Prime Minister as �scared� whilst grassroots support�... May 27, 2010 ... ... wrong because the pronoun �his� is missing. in essence, the correct phrases should be �he is on THE phone� and �he is not on HIS seat�. He is not on his seat right now ???? ?_? ???????? https://twitter.com/ warofoneman/status/676443799028039680 � Idinagdag ni Ryoko,.	The student is considered �tardy� if he is not in his seat when the bell rings. 3. Grading. The two 10 weeks) grades are a weighted �... When he is not in his seat it doesn't slide or flop around the car. It is very hard to find a backless booster seat with this feature. This seat is comfortable and wide. Sep 13, 2012 ... I am in a Japanese office setup sitting next to my boss. He often gets phone calls but most of the time he is not in his seat. How do I answer his�... week interims and quarter (8 Mar 12, 2013 ... Helper enter in the room because he have something to tell to G.F;but he is not in his seat ;then he heard GF speaking his mind ;he said that in�...

He is not on his seat

13 results on the web

he is not in his seat

11,630 results on the web

More popular!

7 Dis 2015 ... KUALA LUMPUR: Veteran newsman and Najib Razak critic, Kadir Jasin described the Prime Minister as �scared� whilst grassroots support�...
May 27, 2010 ... ... wrong because the pronoun �his� is missing. in essence, the correct phrases should be �he is on THE phone� and �he is not on HIS seat�.
He is not on his seat right now ???? ?_? ???????? https://twitter.com/ warofoneman/status/676443799028039680 � Idinagdag ni Ryoko,.

The student is considered �tardy� if he is not in his seat when the bell rings. 3. Grading. The two
10 weeks) grades are a weighted �...
When he is not in his seat it doesn't slide or flop around the car. It is very hard to find a backless booster seat with this feature. This seat is comfortable and wide.
Sep 13, 2012 ... I am in a Japanese office setup sitting next to my boss. He often gets phone calls but most of the time he is not in his seat. How do I answer his�...
week interims and quarter (8
Mar 12, 2013 ... Helper enter in the room because he have something to tell to G.F;but he is not in his seat ;then he heard GF speaking his mind ;he said that in�...