często ?:

1. often

American english word "często"(often) occurs in sets:

AVIO #9 Lesson #2 Habits
Adverbs of propability II
przygotowanie do kartkówki
Szczepan_28th Dec.
Lesson_How often?

2. frequently

American english word "często"(frequently) occurs in sets:

UNIT 13 Cutting Edge Pre-Intermediate Student's Book
Behavioral economics - poprawa
Jobs Review 27.05.21
Think in English
Recycling Vocabulary

3. oftentimes

American english word "często"(oftentimes) occurs in sets:

Behavioral economics 2
Martynka ang