Sy maak die kamer so netjies dat selfs my broer sê dit lyk goed.

Here Sy means she because it is the subject of the sentence: Sy maak ... = She makes ...

Yes, sy can also mean her in other contexts. For example:

• Sy maak die kamer netjies. = She tidies the room.
• Ek sien sy broer. = I see her brother.

So context tells you whether sy means she or her.

Yes, maak literally means make, but Afrikaans uses it in a wider way, much like English does in phrases such as make it clean or make the room tidy.

So Sy maak die kamer so netjies ... means something like:

• She makes the room so neat ...
• more naturally: She tidies the room so well ...

It is a very normal verb in Afrikaans for causing something to become a certain way.

Yes. The verbs maak, sê, and lyk are all in the present tense.

Afrikaans verbs do not change form for different persons the way English verbs sometimes do. So:

• ek maak
• jy maak
• hy/sy maak

all use maak.

Depending on context, the present tense can mean:

• something happening now
• something that happens regularly
• a general fact

Die is the Afrikaans definite article, meaning the.

So:

• die kamer = the room

Afrikaans uses die for both singular and plural nouns, unlike languages that have different forms for gender or number.

Here it is used because the sentence is talking about a specific room, not just a room in general.

So ... dat means so ... that.

In this sentence:

• so netjies = so neat / so tidy
• dat ... = that ...

So the pattern is:

• so + adjective/adverb + dat + result

Example from the sentence:

• Sy maak die kamer so netjies dat ...
• She makes the room so tidy that ...

This is a very common Afrikaans structure.

Because netjies is being used after the verb as a description, not directly before a noun.

Compare:

• 'n netjiese kamer = a neat room
  
  • here the adjective comes before the noun, so you get netjiese
• Die kamer is netjies = The room is neat
  
  • here it comes after the verb, so you use netjies

In your sentence, netjies describes the state the room is made into:

• Sy maak die kamer netjies = She makes the room neat

Selfs means even.

In this sentence:

• selfs my broer = even my brother

It comes directly before the part being emphasized. So the emphasis is on my brother as a surprising example.

The idea is: the room looks so good that even my brother says so.

Because my already acts as the determiner.

Just like in English, you say:

• my brother
• not the my brother

So in Afrikaans:

• my broer = my brother
• not die my broer

Because sê is the standard spelling of the verb to say in Afrikaans.

The accent is important in writing. It helps distinguish sê from other forms, especially se, which is a different word used in possessive expressions, such as:

• Jan se boek = Jan's book

So:

• sê = say
• se = possessive marker

The clause after dat is a result clause: that even my brother says it looks good.

A useful way to understand it is this:

• dat introduces the clause
• sê means says
• dit lyk goed is the thing he says

Afrikaans often lets a whole content clause come after verbs like sê, dink, and weet.

So this part works naturally as:

• dat selfs my broer sê dit lyk goed

A fuller, more explicit version could also be:

• dat selfs my broer sê dat dit goed lyk

That version may look easier to an English speaker because it includes a second dat.

Literally it means it looks good.

Word by word:

• dit = it
• lyk = looks / seems / appears
• goed = good

So lyk is the verb used when something appears a certain way:

• Dit lyk mooi. = It looks beautiful.
• Dit lyk reg. = It looks right.

Because goed is the form used after the verb here.

Compare:

• 'n goeie idee = a good idea
  
  • before a noun, you often get goeie
• Die idee is goed = The idea is good
  
  • after the verb, you use goed

So in:

• dit lyk goed

goed is correct because it comes after lyk.

Yes. A very natural English rendering would be:

• She tidies the room so well that even my brother says it looks good.

That is often a better way to feel the sentence than sticking too closely to makes the room so tidy.

Both ideas are correct, but the more natural English version helps show how Afrikaans often uses maak in expressions like this.