- I'm a boy.
- I'm happy.
- I'm eating rice.
- I eat rice.
- I have eaten rice.
- I'm here.
- I'm in Canada.
What would be negative questions for all above? I'm confused sometimes "NOT" sits before subject like Isn't she a girl?, and sometimes after subject like Am I not here? Is there any restriction about NOT (before or after subject), and is there changes in meanings?