क्या आप हमेशा स्टेशन जाने से पहले टिकट देखती हैं?

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

So:

• क्या आप हमेशा स्टेशन जाने से पहले टिकट देखती हैं? = Do you always check the ticket before going to the station?

This sentence-initial क्या is different from क्या meaning what in other contexts.
Hindi can also ask yes/no questions with just intonation, but starting with क्या makes the question very clear.

आप is the polite/formal word for you. It can be used for:

• one person respectfully
• more than one person

By contrast:

• तुम = less formal, friendly
• तू = very intimate, very informal, or rude in the wrong context

So this sentence sounds respectful or formal.

देखती हैं shows that the person being addressed is female (or a group of females), and the sentence uses the respectful आप form.

Breakdown:

• देखती = habitual feminine form of देखना
• हैं = the auxiliary used with आप

If you were speaking politely to a man, it would usually be:

• क्या आप हमेशा स्टेशन जाने से पहले टिकट देखते हैं?

So the difference between देखती and देखते is mainly gender here.

It is the present habitual form.

That means it talks about a habit, a repeated action, or something someone usually does:

• देखती हैं = do check / usually check / are in the habit of checking

Because the sentence also has हमेशा = always, the habitual meaning is especially clear.

It does not mean the person is checking the ticket right now.
For that, Hindi would use something like:

• देख रही हैं = are looking/checking right now

Because से पहले is a postposition, and a verb before a postposition usually takes an oblique form.

So:

• dictionary form: जाना = to go
• oblique form before से पहले: जाने

That is why:

• जाने से पहले = before going

This is a very common pattern in Hindi:

• खाने के बाद = after eating
• आने से पहले = before coming
• सोने से पहले = before sleeping

से पहले means before.

In this sentence:

• स्टेशन जाने से पहले = before going to the station

Literally, it is something like:

• going to the station + before

Hindi often expresses time relationships this way with postpositions instead of prepositions.

A matching opposite expression is:

• के बाद = after

For example:

• स्टेशन जाने के बाद = after going to the station

With verbs of motion like जाना, Hindi often uses the destination noun directly, without को.

So these are natural:

• घर जाना = to go home
• स्कूल जाना = to go to school
• स्टेशन जाना = to go to the station

So स्टेशन जाने is perfectly normal.
In this kind of expression, adding को would usually sound unnatural.

It can mean both, depending on context.

Literally, देखना is to see / look at.
But in many everyday contexts, it also works like check, inspect, or make sure about.

So here टिकट देखती हैं most naturally means something like:

• check the ticket
• look at the ticket to make sure everything is okay
• make sure you have the ticket

This broader use of देखना is very common in Hindi.

हमेशा means always.

It is an adverb of frequency, and it tells you the action is done regularly:

• हमेशा टिकट देखती हैं = always check the ticket

Its position is fairly flexible in Hindi. The sentence as given is very natural, but you may also hear slightly different placements depending on emphasis.

For example:

• क्या आप हमेशा स्टेशन जाने से पहले टिकट देखती हैं?
• क्या आप स्टेशन जाने से पहले हमेशा टिकट देखती हैं?

Both are understandable. The original version sounds neutral and natural.

In this sentence, the verb agrees with the subject, which is आप.

That is why देखती tells us something about the person being addressed, not about टिकट.

So:

• देखती = the addressee is feminine
• टिकट does not control the verb here

This is an important point, because in some other Hindi constructions, especially perfective ones with ने, agreement can work differently. But in this present habitual sentence, the agreement is with आप.

Here are the common changes:

Polite, male:

• क्या आप हमेशा स्टेशन जाने से पहले टिकट देखते हैं?

Less formal, female:

• क्या तुम हमेशा स्टेशन जाने se पहले टिकट देखती हो?

Less formal, male:

• क्या तुम हमेशा स्टेशन जाने से पहले टिकट देखते हो?

So the main things that change are:

• आप / तुम
• हैं / हो
• देखती / देखते

These reflect politeness and gender.