Suspect: to believe to be guilty, false, counterfeit, undesirable, defective, bad, etc., with little or no proof; to doubt or mistrust; to believe to be the case or to be likely or probable; surmise; to have some hint or fore knowledge of.
Example: I suspect his motives.
Usage in Sentence: Suspect of, not for.
Don’t say: I suspect Kate for stealing the pen.
ü Say: I suspect Kate of stealing the pen.