① if you want to practice word order, this page has a 20 different exercises: https://www.englisch-hilfen.de/en/exercises_list/satz.htm . ② I think this article is helpful for anyone who wants to understand the 4 different types of sentences: https://www.english-grammar-revolution.com/sentence-structure.html (the article includes helpful diagrams). ③ If you want to start diagraming sentences (high school students do this in the United States), you can read this article: https://www.english-grammar-revolution.com/english-grammar-exercise.html . ④ If you confuse some verbs, such as say / tell , make / do , can / could , etc., you can use this website: https://agendaweb.org/verbs-exercises.html . There are many, many other exercises there. I highly recommend you check it out.