sijakhagi jeone je yeokhareul hwaginhaeyo.

-기 전에 means before doing something.

Here, 시작하다 means to start, and 시작하기 전에 means before starting or before we start.

This pattern is very common:

verb stem + 기 전에 = before doing ...

For example:

• 먹기 전에 = before eating
• 자기 전에 = before sleeping

Because 전에 usually attaches to a noun or a noun-like form, and -기 turns the verb into that noun-like form.

So:

• 시작하다 = to start
• 시작하기 = starting
• 시작하기 전에 = before starting

You cannot normally use the plain dictionary form 시작하다 전에 here.

제 means my in a polite or humble way.

It is a shortened form of 저의:

• 저의 = my
• 제 = my

So 제 역할 means my role.

Both can mean my, but the politeness level is different.

• 제 = polite/humble
• 내 = informal

So if you are speaking politely, 제 is the natural choice.

Compare:

• 제 이름은 ... = My name is ... (polite)
• 내 이름은 ... = My name is ... (informal)

-을 is the object marker.

It marks 역할 as the thing being checked or confirmed.

So:

• 역할 = role
• 역할을 = role + object marker

The sentence is showing that the role is what gets confirmed.

Also, -을 is used because 역할 ends in a consonant. If the noun ended in a vowel, you would use -를 instead.

It comes from the dictionary form 확인하다, which means to check or to confirm.

When a 하다 verb is conjugated in the 해요 style:

• 확인하다 → 확인해요

This is a very common pattern:

• 공부하다 → 공부해요
• 일하다 → 일해요
• 확인하다 → 확인해요

확인해요 is in the polite, non-formal style, often called 해요 style.

It is:

• more polite than 확인해
• less formal than 확인합니다

So it sounds natural in everyday polite speech, lessons, instructions, and friendly professional settings.

It is omitted.

Korean often leaves out the subject when it is already clear from context. That is very normal.

So the sentence does not explicitly say I, we, or you. The listener usually understands who is meant from the situation.

This is one reason Korean can sound more compact than English.

Because Korean is generally a subject-object-verb language, and the main verb usually comes at the end of the sentence.

So the order here is roughly:

• 시작하기 전에 = before starting
• 제 역할을 = my role + object marker
• 확인해요 = check/confirm

That final-verb pattern is one of the most important differences from English word order.

Grammatically, yes, it is a present-form verb. But in Korean, this form is often used more broadly than the English present tense.

Depending on context, it can sound like:

• a present action
• a habitual action
• a planned action
• an instruction or procedural statement

So in a sentence like this, it may feel more like we check/let's check/check as part of a routine, not only are checking right now.

A very literal breakdown is:

• 시작하기 전에 = before starting
• 제 = my
• 역할을 = role + object marker
• 확인해요 = check/confirm

So the structure is basically:

Before starting, my role, check.

Of course, natural English rearranges that into a smoother sentence, but this kind of literal breakdown is useful for seeing how the Korean grammar works.