Die begrotingskode is op die eisvorm.

Because die is the Afrikaans definite article, meaning the. It is used before both nouns here: die begrotingskode and die eisvorm.

A useful thing for English speakers to know is that Afrikaans does not change the definite article for gender, case, or number. So die can mean the for singular or plural nouns alike.

Yes. In Afrikaans, compound nouns are very often written as one word, much more consistently than in English.

So begrotingskode is a compound noun made from:

• begroting = budget
• kode = code

Together, they form begrotingskode = budget code.

That -s- is a linking sound/letter between the parts of the compound. It does not usually need to be translated separately.

So:

• begroting
  • kode
• becomes begrotingskode

This kind of linking -s- is common in Afrikaans compounds, but it is not always fully predictable, so learners often just need to get used to common forms.

It is also a compound noun, written as one word:

• eis = claim
• vorm = form

So eisvorm is literally claim form. As in English, the first noun describes the second one, but Afrikaans normally writes the whole compound as a single word.

Afrikaans main clauses usually follow the pattern:

subject + finite verb + rest of the sentence

So here:

• Die begrotingskode = subject
• is = finite verb
• op die eisvorm = prepositional phrase

That is why the sentence looks very similar to English word order: The budget code is on the claim form.

In the present tense, is stays the same with all persons in Afrikaans.

For example:

• Ek is
• Jy is
• Hy is
• Ons is
• Hulle is

So Afrikaans is simpler than English here. English has am / is / are, but Afrikaans just uses is.

Op usually means on. In this sentence, it is used because the code appears on the form, meaning on the document or on its surface.

That is the natural choice when talking about information written on a page, form, document, or sometimes even a screen.

If you used in, it would suggest in/inside rather than on. For a form, op is the normal preposition.

No. Afrikaans has largely lost the gender and case system that you see in languages like German, and even compared with Dutch it is much simpler.

So in this sentence:

• die does not change
• the nouns do not change form because of subject/object function
• there are no special case endings to memorize

That is one reason Afrikaans grammar often feels quite straightforward to English speakers.

Afrikaans normally uses double negation with nie ... nie.

So the negative version would be:

Die begrotingskode is nie op die eisvorm nie.

Structure:

• first nie comes after the verb or after the element being negated
• second nie comes at the end of the clause

This is a very important Afrikaans pattern.

Usually, in Afrikaans compound nouns, the last part of the compound takes the plural ending.

So:

• begrotingskode → begrotingskodes
• eisvorm → eisvorms

And the article would still be die:

• die begrotingskodes
• die eisvorms

So if you wanted a plural sentence, you could say:

Die begrotingskodes is op die eisvorms.

Notice that is still does not change.