The Genitive Case = Genetiivi

Online Exercises

https://agendaweb.org/exercises/grammar/contractions/genitive-case-write

https://www.englishexercises.org/makeagame/viewgame.asp?id=2452

https://www.englisch-hilfen.de/en/exercises/nouns_articles/apostrophe_s2.htm

https://www.english-4u.de/en/grammar-exercises/possessive-case.htm

-s - genitive or of-construction?