Characteristics of grammar 「cont.」
Grammatical function indicator: Particles 「cont.」
Question Marker か「ka」
The sentence particle か「ka」is attached to a statement, to change it to a question.
hiru gohan o tabe masu.
I eat breakfast./I am going to eat breakfast.
Hiru gohan o tabe masu ka?
Do you eat breakfast?/Are you going to eat breakfast?
Note: The reason for the two separate ways to say it in English is due to the context of the conversation.