Learn Polish: Mój dziadek czytywał mi bajki, kiedy byłem mały. - My grandfather used to read fairytales to me when I was little.

While the regular imperfective czytał can mean he was reading or read repeatedly, czytywać is a frequentative verb. It specifically emphasizes a habitual, repeated action in the past, translating perfectly to the English structure "used to read." Using czytywał adds a strong sense of nostalgia and established routine that czytał lacks.

How do we form the frequentative verb czytywać?

You form it by adding the frequentative suffix -ywać to the verb stem. For czytać (to read), you take the stem czyt- and add the suffix to get czytywać. It then conjugates in the past tense just like a regular -ać verb, giving us the third-person masculine form czytywał.

Why is the short pronoun mi used instead of mnie?

mi is the unstressed dative form, meaning "to me." In Polish, you use short unstressed pronouns for neutral statements where the pronoun isn't the main focus. You would only use the long form mnie for emphasis, for example if you wanted to stress that he read to ME specifically, rather than to my brother.

What case is bajki, and would it change if the sentence were negative?