WRİTİNG FOUR KINDS OF SENTENCES

              I love grammer course. = Simple Sentence

             I love grammer course and I have high grades in this course. = Compound sentence

             If I hadn't loved this course, I couldn't have taken high grades. = Complex sentence

             If I hadn't loved this couse, I couldnt have taken high grades and I couldn't have passed exams.= Compound- Complex sentence