How do you say, "Can you cook Japanese food?" in Japanese?
nihon ryouri wo tsukuremasu ka ?
Japanese food is 日本料理（にほんりょうり）
The verb "to make" is 作る（つくる）
By putting the verb in the potential form（つくる ー＞ つくれる） and using を (wo) as a direct object marker, one can ask the above question.
I don't think this is English grammar, but I couldn't resist answering.