Die kragbron is gereed.

Here, die means the.

It is the normal Afrikaans definite article, and it is used for both singular and plural nouns:

• die kragbron = the power source
• die kragbronne = the power sources

It does not mean this in this sentence. If you want this, Afrikaans usually uses hierdie.

Yes. Kragbron is a compound noun, and Afrikaans usually writes compounds as one word.

It is made up of:

• krag = power
• bron = source

So kragbron literally means power source.

This is very common in Afrikaans. English often uses two words where Afrikaans prefers one compound word.

Yes. In the present tense, Afrikaans uses is for all persons:

• ek is = I am
• jy is = you are
• hy/sy/dit is = he/she/it is
• ons is = we are
• julle is = you are
• hulle is = they are

So unlike English, Afrikaans does not switch between am / is / are in the present tense.

Because this is a normal subject + verb + complement structure.

• Die kragbron = subject
• is = linking verb
• gereed = adjective describing the subject

This works much like English The power source is ready. After a linking verb such as is, the describing word usually comes after the verb.

No, not here.

In Die kragbron is gereed, the adjective is in predicative position, meaning it comes after is. In that position, Afrikaans adjectives do not change for masculine/feminine/neuter or singular/plural.

So you get:

• Die kragbron is gereed.
• Die kragbronne is gereed.

In both cases, gereed stays the same.

You would say:

Die kragbron is nie gereed nie.

Afrikaans usually uses a two-part negative with nie ... nie in a sentence like this:

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

So the pattern is:

Die kragbron is nie gereed nie.

This is one of the most important Afrikaans sentence patterns to learn.

The plural is:

Die kragbronne is gereed.

A few things to notice:

• kragbron becomes kragbronne
• die stays die
• is stays is
• gereed stays gereed

So Afrikaans changes fewer words than English learners sometimes expect.

They can overlap, but they are not always identical.

• gereed usually emphasizes ready / prepared
• klaar often emphasizes finished / done, though it can also mean ready in some contexts

In a status-type sentence like this, gereed is a very natural choice for ready.

Very roughly:

• Die kragbron is gereed. = The power source is ready.
• Ek is klaar. = I am finished / done.

So they are related, but not always interchangeable.

A rough English-friendly approximation is:

dee KHRAHKH-bron uhs khuh-REET

A few helpful points:

• die sounds like dee
• g in Afrikaans is usually a guttural sound, like the ch in Scottish loch or German Bach
• is is often pronounced more like uhs than English iz
• gereed has the stress on the second syllable

So the hardest part for many English speakers is usually the g sound.