Množné číslo 

• https://www.umimeanglicky.cz/cviceni-nouns 

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

• https://www.englisch-hilfen.de/en/exercises/nouns_articles/singular_plural3.htm 

• https://www.englisch-hilfen.de/en/exercises/nouns_articles/plural5.htm 

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

• https://www.englisch-hilfen.de/en/exercises/nouns_articles/plural2.htm 

• https://www.englisch-hilfen.de/en/exercises/nouns_articles/plural3.htm 

• https://www.englisch-hilfen.de/en/exercises/nouns_articles/plural4.htm 

• https://www.englisch-hilfen.de/en/exercises/plural1/index.php 

• https://www.englisch-hilfen.de/en/exercises/plural2/index.php 

• https://www.englisch-hilfen.de/en/exercises/plural3/index.php 

• https://www.english-4u.de/en/grammar-exercises/regular-plural.htm 

• https://www.english-4u.de/en/grammar-exercises/regular-plural2.htm 

• https://www.english-4u.de/en/grammar-exercises/regular-plural3.htm 

• https://www.english-4u.de/en/grammar-exercises/irregular-plural.htm 

• https://www.english-4u.de/en/grammar-exercises/irregular-plural2.htm 

• https://www.english-4u.de/en/grammar-exercises/plural.htm 

• https://www.english-4u.de/en/grammar-quizzes/singular-plural.htm 

• https://www.english-4u.de/en/grammar-tests/plural.htm 

• https://www.myenglishpages.com/grammar-exercise-plural/ 

Hard

• https://agendaweb.org/exercises/grammar/plural/irregular-plurals-3.htm 

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• https://www.grammar.cl/exercises/plural-nouns.pdf