क्या आप हिंदी बोलती हैं?

At the beginning of a sentence, क्या is a common marker for a yes/no question.

So:

• क्या आप हिंदी बोलती हैं? = a yes/no question
• आप हिंदी बोलती हैं। = a statement

Important: क्या does not mean what here.
When क्या is at the start of a sentence, it often just marks that you are asking a yes/no question.

No. It has two common uses:

1. Question marker at the beginning of a sentence

   • क्या आप हिंदी बोलती हैं?
   • Here it means Are/Do... ?

2. What in other sentence positions

   • आप क्या बोलती हैं?
   • This means What do you speak / What are you saying? depending on context

So position matters a lot.

आप is the polite/respectful way to say you in Hindi.

Hindi has different levels of you:

• आप = polite / formal / respectful
• तुम = informal, common with friends, peers, younger people
• तू = very intimate or very rude, depending on context

So क्या आप हिंदी बोलती हैं? is the safe, polite form.

If you were talking to a friend, you might say:

• क्या तुम हिंदी बोलते हो? — to a male
• क्या तुम हिंदी बोलती ho? — to a female

Because बोलती shows that the person being addressed is female.

In this kind of sentence, the verb form agrees with the subject in gender:

• बोलते = masculine
• बोलती = feminine

So:

• क्या आप हिंदी बोलते हैं? = said to a man or boy, respectfully
• क्या आप हिंदी बोलती हैं? = said to a woman or girl, respectfully

English does not show this difference, but Hindi often does.

Yes. बोलती tells you that the speaker is talking to a female.

If the speaker were addressing a man respectfully, it would be:

• क्या आप हिंदी बोलते हैं?

This is one of the big differences from English: Hindi often reveals gender in verb forms.

Because आप takes plural/respectful agreement, even when it refers to only one person.

So Hindi treats आप grammatically like a plural or honorific subject:

• आप ... हैं
• not आप ... है

That is why you get:

• क्या आप हिंदी बोलती हैं?

not

• क्या आप हिंदी बोलती है?

Using हैं with आप is standard and correct.

Hindi does not use do-support the way English does.

In English, you often need do/does to make questions:

• Do you speak Hindi?

In Hindi, you simply use the verb phrase itself, often with क्या:

• क्या आप हिंदी बोलती हैं?

So there is no separate Hindi word here that directly matches English do.

Because Hindi usually follows Subject–Object–Verb order.

This sentence is structured like:

• क्या = question marker
• आप = subject
• हिंदी = object
• बोलती हैं = verb phrase

So literally the order is closer to:

• Do you Hindi speak?

That is normal in Hindi.

Because हिंदी is a direct object here, and with verbs like बोलना for languages, Hindi normally does not use को.

So you say:

• मैं हिंदी बोलता हूँ।
• आप हिंदी बोलती हैं।

not usually:

• मैं हिंदी को बोलता हूँ।

Adding को here would sound unnatural.

Here बोलती हैं is the habitual/simple present form, which is the normal way to say speak in the sense of knowing or being able to speak a language.

So:

• क्या आप हिंदी बोलती हैं? = Do you speak Hindi?

If you wanted Are you speaking Hindi right now?, Hindi would usually use the progressive:

• क्या आप हिंदी बोल रही हैं?

So बोलती हैं is about a general ability or habit, not an action happening at this exact moment.

Yes, sometimes, especially in conversation.

The most neutral textbook form is:

• क्या आप हिंदी बोलती हैं?

But in speech, people may also say:

• आप हिंदी बोलती हैं क्या?

This is also a yes/no question, with क्या moved to the end. It can sound conversational.

However, for learners, the sentence-initial क्या pattern is the safest one to use first.

If you replace respectful आप with informal तुम, the auxiliary changes:

• to a female: क्या तुम हिंदी बोलती हो?
• to a male: क्या तुम हिंदी बोलते हो?

Compare:

• आप ... हैं = polite/respectful
• तुम ... हो = informal

So both politeness and agreement change.

A simple learner-friendly pronunciation is:

kyaa aap hindii boltii hain

A few quick notes:

• क्या sounds roughly like kyaa
• आप sounds like aap
• हिंदी sounds like hin-dii
• बोलती sounds like bol-tii
• हैं is often pronounced something like hain with a nasal sound

You do not need perfect pronunciation right away; the most important thing is to clearly distinguish:

• बोलते vs बोलती
• है vs हैं

Those differences matter grammatically.

Sometimes, yes, especially in conversation, if your intonation clearly sounds like a question:

• आप हिंदी बोलती हैं?

People will often understand this as a question.
But for learners, adding क्या makes the question clearer and more standard:

• क्या आप हिंदी बोलती हैं?

So it is a good habit to keep क्या until you are more comfortable with spoken Hindi.