Die verbindingspoed bepaal die aflaaispoed.

Because die is the normal definite article in Afrikaans, meaning the.

In this sentence:

• die verbindingspoed = the connection speed
• die aflaaispoed = the download speed

Afrikaans does not change the article for gender the way languages like German do. It also does not have a separate form like English the vs the for singular/plural. Die is used very widely for all of these.

Because Afrikaans main clauses normally follow the verb-second pattern.

The structure here is:

• Die verbindingspoed = subject
• bepaal = finite verb
• die aflaaispoed = object

So the sentence pattern is:

Subject + Verb + Object

That is very similar to normal English word order here:

• The connection speed determines the download speed.

If you started the sentence with something else, the verb would still usually stay in second position in Afrikaans.

Yes. Afrikaans, like Dutch and German, very often builds longer nouns by joining smaller parts into one word.

Here:

• verbinding + spoed → verbindingspoed
• aflaai + spoed → aflaaispoed

So Afrikaans prefers one written compound where English often uses two separate words:

• English: connection speed

• Afrikaans: verbindingspoed

• English: download speed
• Afrikaans: aflaaispoed

This is very normal in Afrikaans.

That -s- is a linking sound/letter that often appears in Afrikaans compounds.

So instead of:

• verbindingspoed

you get:

• verbindingspoed

This linking -s- does not always have a neat one-word translation in English. It is just part of how compounds are commonly formed. You should think of verbindingspoed as a single established compound meaning connection speed.

Not every compound uses a linking -s-, but many do, and this is something learners gradually get used to.

On its own, aflaai is commonly used as a verb meaning download.

But in aflaaispoed, it forms part of a compound noun:

• aflaai = download / to download
• spoed = speed
• aflaaispoed = download speed

This is very common in Afrikaans: a verb stem or verbal idea can appear inside a compound noun.

So even though aflaai can be verbal in other contexts, here the whole word aflaaispoed functions as a noun.

Because Afrikaans normally writes compound nouns as a single word.

So:

• verbindingspoed is correct, not usually verbinding spoed
• aflaaispoed is correct, not usually aflaai spoed

This is one of the biggest spelling habits English speakers need to learn. English often separates noun modifiers:

• connection speed
• download speed

Afrikaans usually joins them:

• verbindingspoed
• aflaaispoed

If you separate them, it often looks unnatural or simply wrong in standard Afrikaans.

Yes. Bepaal is the verb meaning determine, decide, or control depending on context.

In this sentence, it means something like:

• determines
• sets
• controls

So the idea is that the connection speed is what determines the download speed.

Grammatically, bepaal is the present-tense form used with a singular subject here.

Because Afrikaans verbs usually do not change for person in the present tense the way English verbs do.

English:

• I determine
• you determine
• he determines

Afrikaans:

• ek bepaal
• jy bepaal
• hy bepaal

So bepaal stays the same. This is one reason many learners find Afrikaans verb conjugation simpler than English.

Not really. Afrikaans has lost most of the case system that older Germanic languages had.

That means:

• the subject die verbindingspoed
• the object die aflaaispoed

both just use die and ordinary noun forms.

English speakers often find this helpful, because you do not have to learn lots of separate article forms for nominative, accusative, etc.

A rough guide for an English speaker is:

die → like dee
verbindingspoed → roughly fur-BIN-ding-spoot
bepaal → roughly buh-PAHL
aflaaispoed → roughly AF-ly-spoot

A few helpful notes:

• aa in bepaal and aflaai is a long vowel.
• ui does not appear here, so that removes one common pronunciation difficulty.
• oe in spoed sounds like oo in food.
• Final d in Afrikaans can sound a bit softer than an English d.

A more natural rhythm would be something like:

dee fur-BIN-ding-spoot buh-PAHL dee AF-ly-spoot

Bepaal is usually stronger than simple depends on.

It suggests that the first thing determines or sets the second thing. So the relationship is more like:

• The connection speed determines the download speed

rather than:

• The download speed depends on the connection speed

That second English sentence expresses a similar idea, but it would normally be worded differently in Afrikaans. So for this exact Afrikaans sentence, determines is the best match.