Grammar · Particles
か, the question marker
The pattern
[Sentence] か
[Sentence] ka
Put か on the end and any statement becomes a question. Nothing else moves, and no auxiliary appears.
The mistake to avoid
Written Japanese usually uses 。 rather than a question mark after か. The か is doing that job already.
Examples
Rōmaji help
学生ですか。
がくせいですか。
gakusei desu ka.
Are you a student?
行きますか。
いきますか。
ikimasu ka.
Are you going?
日本人ですか。
にほんじんですか。
nihon-jin desu ka.
Are you Japanese?
コーヒーを飲みますか。
コーヒーを のみますか。
kōhī o nomimasu ka.
Do you drink coffee?