Pre- and Suffixes:
https://www.english-grammar.at/online_exercises/prefixes-suffixes/prefixes-suffixes-index.htm
https://www.really-learn-english.com/prefixes-and-suffixes-worksheets.html
https://www.ecenglish.com/learnenglish/lessons/prefix-and-suffix-practice
https://www.colanguage.com/de/partizipialsatz#exercises-header