Japanese particle か ka - かどうか ka douka You could also put どうか “douka” after か “ka” It’s like in English, you would additionally put “ or not “ 明日は雨かどうか分からない。 Ashita wa ame KA DOUKA wakaranai I don’t know I’m not sure IF it will rain tomorrow (or not) はるかは行く？ Haruka wa iku?
JLPT N5 Grammar: か (ka) – JLPTsensei. com Meaning: か is a sentence-ending particle used to turn a sentence into a question It’s easy to think of it like a question mark (which often is not used in Japanese)