sentence: After the exams finished , I went home and had nothing to do , so I thought that I needed to watch my dramas because it was a week since I had watched them due to the exam week .
modified: After the examns finished , I went home and had nothing to do , so I thought that I needed to watch my dramas because it was a week I haven't watch them due to the exam week .
transformation: SPELL, PREP, VERB:TENSE, VERB:FORM