‘-는 편이다, -은/ㄴ 편이다’ is used to express a tendency rather than making an assertive and clear statement of a fact, which literally means ‘on a certain side’. It’s often used with some adverbs like ‘많이’ (many, a lot), ‘자주'(often) etc. After verbs, we use ‘-는 편이다’, After adjectives, we use ‘-은 편이다(if it ends in a noun)/’-ㄴ 편이다‘(If it ends in a vowel).
– 만 원이니까 좀 비싼 편이에요. (It’s 10000 won, so it’s kind of expensive)
– 일주일에 두 번쯤 영화를 보니까 자주 보는 편이에요. (I tend to watch a lot of movies, about two times a week)