balpyo jeone ginjanghamyeon gipge sumeul swieoyo.

전에 means before and follows a noun.

• 발표 전에 = before the presentation
• 발표 전 also means before the presentation, but it is a little more compact and often used in written or formal contexts, like labels or schedules.
• 발표하기 전에 means before presenting / before giving the presentation. This version focuses more on the action of presenting, while 발표 전에 treats presentation more like an event or time point.

So 발표 전에 is a very natural everyday way to say before the presentation.

긴장하면 is 긴장하다 + -면.

• 긴장하다 = to be nervous / to get tense
• -면 = if / when

So 긴장하면 means if you get nervous or when you get nervous.

In Korean, -면 can cover both meanings depending on context:

• conditional: if
• general repeated situation: when(ever)

In this sentence, it sounds like a general habit or suggestion: When you get nervous before a presentation, take a deep breath.

Korean often leaves out the subject when it is understood from context.

So this sentence could mean:

• I take a deep breath if I get nervous before a presentation
• You should take a deep breath if you get nervous before a presentation
• People take a deep breath if they get nervous before a presentation

Without more context, it is general and natural. Korean does this much more often than English.

In Korean, the present tense is often used for:

• habits
• general truths
• advice
• repeated actions

So 깊게 숨을 쉬어요 does not have to mean only I am breathing right now. It can also mean:

• I breathe deeply
• Take a deep breath
• You should breathe deeply
• When that happens, I/you breathe deeply

This is very normal in Korean. The sentence sounds like a general response to a situation.

숨을 쉬다 is the standard Korean expression for to breathe.

Literally:

• 숨 = breath
• 쉬다 = to take, to breathe, to rest depending on context

Together, 숨을 쉬다 means to breathe.

This kind of expression is common in Korean. Even if it looks more literal than English, learners should treat 숨을 쉬다 as one normal vocabulary item.

The 을 is the object marker.

• 숨 = breath
• 숨을 = breath + object marker
• 쉬어요 = breathe / take

So grammatically, Korean is treating breath as the object of the verb.

You may also hear 숨 쉬어요 without 을 in casual speech. That happens because Korean often drops particles in conversation. But 숨을 쉬어요 is the full standard form.

Yes. 깊다 means deep, and 깊게 is its adverb form, meaning deeply.

• 깊다 = deep
• 깊게 = deeply

So 깊게 숨을 쉬어요 means breathe deeply or take a deep breath.

You may also come across 깊이 숨을 쉬다. That is also common. In many cases, 깊게 and 깊이 are both used with very similar meaning here.

It can suggest either one depending on context.

긴장하다 can mean:

• to be nervous
• to get nervous / become tense

So 긴장하면 can be understood as:

• if I’m nervous
• if I get nervous

In this sentence, English often sounds most natural as if you get nervous before a presentation or when you feel nervous before a presentation.

It can function as more than one of these.

Depending on context, 발표 전에 긴장하면 깊게 숨을 쉬어요 could mean:

1. A personal habit
   Before a presentation, if I get nervous, I take a deep breath.

2. General advice
   If you get nervous before a presentation, take a deep breath.

3. A general truth about what people do
   People take a deep breath when they get nervous before a presentation.

Because Korean often omits subjects, one sentence can cover all of these unless context makes it specific.

Yes, it could.

• 긴장하다 = to be nervous / to get tense
• 긴장되다 = to feel nervous / to become nervous

So:

• 긴장하면 sounds a bit more direct, using the verb to be/get nervous
• 긴장되면 focuses more on the state arising in you, often translated as if you start to feel nervous

Both are natural, though 긴장하면 is simple and common.

Korean usually puts background information first and the main action near the end.

So the sentence is organized like this:

• 발표 전에 = before the presentation
• 긴장하면 = if/when you get nervous
• 깊게 = deeply
• 숨을 쉬어요 = breathe

Very literally, it is something like:

Before the presentation, if you get nervous, deeply breathe.

This is normal Korean word order:

1. time/background
2. condition
3. adverb
4. main verb at the end

That final-verb pattern is one of the biggest differences from English.