seolma churip kadeuga dasi piryohaeyo?

설마 adds a strong feeling of disbelief, surprise, or “no way…”

In this sentence, it makes the question sound like:

• You don’t mean…
• Surely not…
• No way, do I need…?

So the speaker is not just asking for information. They are reacting emotionally, as if they hoped the answer would be no.

This is a very common question.

필요하다 means to be necessary / to be needed.
In Korean, the thing that is necessary is often marked with 이/가, not 을/를.

So:

• 출입 카드가 필요해요 = An access card is necessary / I need an access card

Even though English says need something with a direct object, Korean treats necessary more like a description of the noun.

Compare:

• 시간이 필요해요 = I need time
• 돈이 필요해요 = I need money
• 도움이 필요해요 = I need help

So 가 is normal and correct here.

출입 means entering and exiting or access to a place.
카드 is card.

So 출입 카드 literally means something like:

• entry/exit card
• access card
• key card

In natural English, access card or key card is usually the best translation, depending on context.

다시 means again.

So 출입 카드가 다시 필요해요? means the access card is needed again, implying:

• it was needed before
• the speaker is annoyed, surprised, or tired of needing it another time

With 설마, it sounds even more like:

• You mean I need the access card again?
• No way—do I need the access card again?

It is grammatically a question, but emotionally it often works like a reaction question.

Because of 설마, the speaker is not neutrally asking. They are expressing:

• disbelief
• frustration
• surprise
• hope that the answer is no

So the tone is something like:

• Wait, seriously?
• Don’t tell me…
• You’re saying I need it again?

필요해요 is the polite present form of 필요하다.

Breakdown:

• 필요하다 = to be necessary
• 필요해요 = is necessary / need(s)

This is a polite, everyday style. It is appropriate in many normal conversations.

Other possible styles:

• 필요해? = casual
• 필요합니까? = formal
• 필요하세요? = polite, with honorific nuance depending on the subject

In this sentence, 필요해요? sounds natural and standard.

Grammatically, 출입 카드가 is the thing being described as necessary.

So literally, the sentence is:

• Is an access card necessary again?

But in natural English, that often becomes:

• Do I need the access card again?
• Do we need the access card again?

Korean often leaves out the person if it is obvious from context. So the sentence focuses on what is needed, not explicitly who needs it.

Sometimes yes, but 다시 is the more natural choice here.

• 다시 = again, once more
• 또 = again / also / in addition

With an action or situation repeating, 다시 often sounds better:

• 다시 필요해요 = needed again

If you said 또 필요해요?, it could also work in conversation, but it may feel slightly more like “needed yet again?” with a conversational or annoyed tone. The difference is subtle, but 다시 is a very safe choice.

Korean often omits subjects and topics when they are clear from context.

So instead of saying:

• 저는 출입 카드가 다시 필요해요?

a speaker will often just say:

• 출입 카드가 다시 필요해요?

The listener can usually figure out whether it means:

• Do I need it again?
• Do we need it again?
• Is it required again?

This omission is one of the most normal features of Korean.

Usually, 설마 expresses disbelief about something the speaker thinks is unlikely, often something undesirable or surprising.

Examples of the feeling:

• No way
• Surely not
• You can’t mean...

It is often used when the speaker expects or hopes that something is not true.

So in this sentence, the speaker probably does not want the access card to be necessary again.

The sentence is not just factual. It has an emotional nuance.

Depending on context, it could feel like:

• Don’t tell me I need the access card again.
• You mean I need the access card again?
• Surely I don’t need the access card again?
• No way—do I need the access card again?

So the key nuance is: surprised disbelief + checking if that is really true

A natural pronunciation is close to:

• 추립 카드

This happens because in fast, natural speech, the final consonant in 출 affects the following sound in 입.

So although it is written 출입 카드, you will often hear something closer to:

• 추립 카드

This kind of sound change is very common in Korean pronunciation.

Yes, depending on context.

Korean does not explicitly say my here, but if the situation clearly involves the listener’s or speaker’s own access card, English may naturally add it:

• Do I need my key card again?

That can be a very natural translation, even though my is not stated in Korean. Korean often leaves out information that English prefers to make explicit.