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Information × Registration Number 2117U002551, Article popup.category Thesis Title popup.author popup.publication 01-01-2017 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/64869 popup.publisher Sumy State University Description There is a plenty of irregular verbs to be memorized in order to master a foreign language at high level. The irregular verbs are the nightmare of students and adults learning foreign languages. popup.nrat_date 2025-05-12 Close