jumalmada jibeseo ppallaehaeyo.

-마다 means every or each.

So 주말마다 means every weekend or each weekend.

• 주말 = weekend
• 마다 = every / each

It attaches directly to a noun:

• 주말마다 = every weekend
• 날마다 = every day
• 사람마다 = every person / each person

It gives the idea of something happening repeatedly on each occasion.

Here, 에서 marks the place where an action happens.

Since 빨래해요 is an action, Korean uses 에서:

• 집에서 빨래해요 = do laundry at home

Compare:

• 집에 가요 = go home
  Here 에 marks a destination.
• 집에서 자요 = sleep at home
  Here 에서 marks the location of the action.

A simple way to remember it:

• 에 = to / at / in, often for destination or existence
• 에서 = at / in, where an action takes place

Both are possible.

• 빨래를 해요
• 빨래해요

In Korean, many noun + 하다 combinations can be shortened by dropping 를 and attaching 하다 directly.

So:

• 빨래를 해요 = do the laundry
• 빨래해요 = do laundry

This is very common and natural.

Other similar examples:

• 공부를 해요 → 공부해요
• 운동을 해요 → 운동해요
• 청소를 해요 → 청소해요

So 빨래해요 is just a more compact, very natural way to say it.

빨래 refers to laundry or washing clothes.

Depending on context, it can mean:

• the laundry itself
• the act of doing laundry

In 빨래해요, it means to do laundry.

Useful related words:

• 빨래하다 = to do laundry
• 세탁하다 = to wash laundry / launder
  This sounds a bit more formal or technical than 빨래하다 in everyday speech.

For everyday conversation, 빨래하다 is very common.

It is omitted, which is very normal in Korean.

주말마다 집에서 빨래해요 could mean:

• I do laundry at home every weekend
• We do laundry at home every weekend
• (He/She) does laundry at home every weekend

The subject is understood from context.

Korean often leaves out subjects when they are obvious or not important. English usually needs a subject, but Korean often does not.

해요 is the polite informal style, often called the -요 form.

It is very common in everyday Korean and is appropriate in many situations:

• with people you do not know well
• with coworkers
• with teachers or older people in casual situations
• in normal polite conversation

Related forms:

• 해 = casual, plain informal
• 해요 = polite
• 합니다 = more formal

So this sentence could appear as:

• 주말마다 집에서 빨래해. = casual
• 주말마다 집에서 빨래해요. = polite
• 주말마다 집에서 빨래합니다. = formal

They are similar, but not the same.

• 주말마다 = every weekend
• 주말에 = on the weekend / at the weekend

주말마다 clearly emphasizes repetition:

• 주말마다 집에서 빨래해요. = I do laundry at home every weekend.

주말에 is more general and can refer to a weekend time without stressing every single weekend:

• 주말에 집에서 빨래해요. = I do laundry at home on the weekend / during the weekend.

If you want the meaning every weekend, 주말마다 is the better choice.

The basic order here is very natural:

주말마다 + 집에서 + 빨래해요
every weekend + at home + do laundry

Korean usually puts the verb at the end, but the other parts can move around more than in English if the meaning stays clear.

For example, these are also possible:

• 집에서 주말마다 빨래해요.
• 저는 주말마다 집에서 빨래해요.

However, the most neutral and easy-to-follow order is often: time + place + verb

So the original sentence is a very standard Korean sentence pattern.

Yes.

You can say:

• 저는 주말마다 집에서 빨래해요.

This makes the subject I explicit.

Why is it often omitted? Because Korean usually leaves out information that is already understood from context.

So:

• 저는 주말마다 집에서 빨래해요. = I do laundry at home every weekend.
• 주말마다 집에서 빨래해요. = (I) do laundry at home every weekend.

Both are correct. The version without 저는 sounds very natural in conversation when the subject is already clear.