Adverbs of Frequency: never, hardly ever, sometimes, often, etc.

Ex. 1  https://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adverbs_of_frequency.htm
Ex. 2  https://elt.oup.com/student/solutions/elementary/grammar/grammar_02_012e?cc=global&selLanguage=en
Ex. 3 https://www.english-4u.de/en/grammar-exercises/word-order5.htm