Try these games!
https://agendaweb.org/exercises/grammar/adverbs/frequency-3.htm
http://www.autoenglish.org/basic/frequencypal/frequency.html
https://www.montsemorales.com/gramatica/AdvFreqPosSpot.htm
https://elt.oup.com/student/solutions/elementary/grammar/grammar_02_012e?cc=cl&selLanguage=en
