क्या तुम यह समझती हो?

At the beginning, क्या marks the sentence as a yes/no question.

So:

• तुम यह समझती ho। = You understand this.
• क्या तुम यह समझती हो? = Do you understand this?

In this position, क्या does not mean what. It is just a question marker.

In Hindi, क्या can go at the beginning of a sentence to turn the whole sentence into a yes/no question. This is very common and very natural.

So:

• क्या तुम यह समझती हो? = Do you understand this?

If क्या appears in other places, it may actually mean what, depending on the sentence. But here, at the start, it is simply marking a yes/no question.

Hindi has different words for you, depending on formality and closeness:

• तू = very informal / intimate / sometimes rude depending on context
• तुम = familiar, neutral in many situations
• आप = polite / formal / respectful

So तुम here suggests the speaker is talking to someone in a familiar but not extremely casual way.

Compare:

• क्या तुम यह समझती हो? = familiar
• क्या आप यह समझती हैं? = polite/formal
• क्या तू यह समझती है? = very intimate/informal

समझती shows that the person being addressed is female.

With तुम, the verb agrees with the gender of the person being spoken to:

• क्या तुम यह समझती हो? = said to a woman/girl
• क्या तुम यह समझते हो? = said to a man/boy

This is a very common feature of Hindi: verbs often show gender.

हो is the form of to be used with तुम in this kind of sentence.

The structure here is roughly:

• समझती = understanding / understand
• हो = are

Together, समझती हो is a common present-tense pattern.

Compare:

• मैं समझती हूँ = I understand (female speaker)
• तुम समझती हो = you understand (female)
• वह समझती है = she understands

So हो is an important part of the verb phrase.

यह means this.

So the sentence is specifically asking whether the listener understands this thing, idea, or explanation.

You can compare:

• क्या तुम यह समझती हो? = Do you understand this?
• क्या तुम समझती हो? = Do you understand?

The first one points to something specific.

In careful spelling it is yah, but in everyday speech it is often pronounced more like yeh.

So learners often hear:

• क्या तुम ये समझती हो?

In speech, यह and ये can sound very similar in some contexts, especially in casual Hindi. But the standard written form here is यह.

Because यह is the direct form, while इस is the oblique form.

Here, this is being used directly as the object of the verb, so यह is normal:

• क्या तुम यह समझती हो?

You use इस when it is followed by a postposition:

• इस बारे में = about this
• इसको = to this / this one

So:

• यह = this
• इस = oblique form of this

Yes. Because of समझती, the listener is female.

If you were speaking to a male, you would say:

• क्या तुम यह समझते हो?

If you were speaking politely to a woman:

• क्या आप यह समझती हैं?

If politely to a man:

• क्या आप यह समझते हैं?

So the verb tells you something about the gender of the person being addressed.

Yes, sometimes. In conversation, intonation can make it clear that something is a question.

So you may hear:

• तुम यह समझती हो?

with a questioning tone.

But क्या तुम यह समझती हो? is clearer and very standard, especially for learners.

Grammatically, this pattern is often described as the habitual present, but in English it is usually translated simply as understand.

So:

• तुम यह समझती हो usually means you understand this

Hindi does not match English tense patterns exactly. Even though the form may look a bit like understanding, the natural English meaning here is usually just understand.

Yes. समझ रही हो is also possible, but it gives a slightly different feel.

• क्या तुम यह समझती हो? = Do you understand this? / Do you get this?
• क्या तुम यह समझ रही हो? = Are you understanding this? / Are you following this right now?

The रही form often sounds more connected to something happening at the moment, such as during an explanation or lesson.

The structure is:

• क्या = question marker
• तुम = you
• यह = this
• समझती = understand (female agreement)
• हो = are

So the pattern is basically:

Question marker + subject + object + verb

Hindi often puts the main verb information toward the end of the sentence.

Yes, it is natural and common. A teacher, friend, parent, or classmate could easily say it.

Depending on the situation, native speakers might also say things like:

• क्या तुम यह समझती हो?
• समझ में आया?
• क्या तुम समझ रही हो?

But the sentence you have is perfectly normal Hindi.