Desu Ka and Desu Ga both translate to “is that so” in English. Desu Ka is used when asking a question, usually with the expectation of a yes or no answer. Desu Ga is used when making an affirmative statement about something where you want to confirm if it’s true.
It can also be used as a polite way of saying okay or sure. In casual conversation, desu ka has become more common than desu ga, but in formal situations either expression might be used depending on context and politeness level desired.
Desu Ka and Desu Ga are two Japanese phrases that often confuse English speakers. Desu Ka is used as a question, while Desu Ga is used to express affirmation or agreement. Both phrases can be translated to “is it so,” but the difference in usage has an impact on how they are interpreted.
When asking a question, Desu Ka should be used; when affirming something, use Desu Ga.

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What is the Difference between Desu And Desu Ga?
Desu and desu ga are both forms of the same verb, which is used to express existence in Japanese. Desu is a short form of “de arimasu”, which means “it exists”. It’s usually used as an affirmative answer or when making polite requests.
On the other hand, desu ga is a longer form of “desuga”, meaning “but it exists,” and it’s most often used for emphasis or after negative statements to make them sound more polite. For example, if someone asked you whether there was something in your room, you could reply with either “Hai, arimasu” (Yes, there is) or “Iie desuga…” (No, but…).
What is the Difference of Desu to Desu Ka?
Desu and desu ka are both forms of the verb “to be” in Japanese. Desu is a more formal version, used to make statements or say something is true, while desu ka is a more casual version, often used at the end of a sentence as an informal way to ask for confirmation. For example, if someone were to say “Kare wa sensei desu,” it would mean “He is a teacher.”
What Does Desu Ka Means?
Desu ka (ですか) is a common Japanese expression that can be used to ask someone if they are sure about something, or to politely confirm that the person has understood what was said. It literally translates as “Is it so?” and implies a degree of politeness and respect in the speaker’s tone. Desu ka can also be used to inquire more information from another person, for example: “What did you mean by that?”
In informal contexts, desu ka may be shortened to suka (すか).
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What's the difference between "So Desu Ka" and "So Desu Ne"? – Japanese Grammar
Conclusion
In conclusion, the Japanese expression “desu ka” and “desu ga” are both very useful expressions that can be used in a variety of situations. While they may seem similar, they have different meanings depending on the context of the conversation. Desu ka is usually used to ask questions or confirm something while desu ga is often used to make statements or express agreement.
Although there are some similarities between these two expressions, it’s important to understand the nuances so you can use them correctly in conversations with native Japanese speakers.