"Mon" is the root of the word premonition.
That is the correct spelling of "premonition" (foreboding).
I had a premonition that I would answer this question. (Tell your teacher you DID use "premonition" in a sentence in your original question).
I had that premonition that I would get in trouble after I stole the candy bar from the store.
Premonition is the word you seek.
A noun.
"He had a sudden premonition that the room in which they were having a conversation might have a hidden microphone, so he signalled to his partner to lower his voice." "She had a premonition that there might be an accident, and did not get on the boat."
Premonition
premonition or prospect
having a premonition
Premonition
expectancy, foresight, premonition, prescience, forethought