اعراب جملة ظن الامتحان صعبا

The sentence “ظن الامتحان صعب” is made up of a past tense verb “ظن” (he thought) and the subject of the sentence, which is implied to be “he” or “the exam”. The verb is followed by two objects – the first one being “الامتحان” (the exam) and the second one being “صعب” (difficult), both of which are marked with a fatha to show their accusative case. This sentence indicates that the exam was thought to be difficult.