Die vervangingsonderdeel is beskikbaar.

Die is the Afrikaans definite article, so here it means the.

A few useful things to know about die:

• It is used for both singular and plural nouns.
• It does not change for grammatical gender, because Afrikaans does not have the kind of masculine/feminine/neuter article system that German has.

So:

• die vervangingsonderdeel = the replacement part
• die vervangingsonderdele = the replacement parts

Because Afrikaans, like Dutch and German, very often forms compound nouns by writing them as one word.

Here, vervangingsonderdeel is made up of:

• vervanging = replacement
• onderdeel = part / component

Together, they form vervangingsonderdeel, meaning replacement part or spare part.

This is very normal in Afrikaans. English often writes these ideas as two words, but Afrikaans usually joins them.

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

So instead of simply joining the words as vervangingonderdeel, Afrikaans uses vervangingsonderdeel.

You do not always add -s- in every compound, so this is something learners mostly get used to through exposure. In this word, the -s- helps the compound sound more natural.

Beskikbaar is an adjective. In this sentence, it means available.

It comes after is and describes the subject:

• Die vervangingsonderdeel = the replacement part
• is beskikbaar = is available

So beskikbaar is functioning as a predicate adjective, just like available in English.

Because after a verb like is, Afrikaans adjectives usually stay in their basic form.

So you say:

• Die vervangingsonderdeel is beskikbaar.

But when an adjective comes before a noun, it often takes -e:

• die beskikbare vervangingsonderdeel = the available replacement part

So compare:

• is beskikbaar = predicate use, no ending
• die beskikbare vervangingsonderdeel = adjective before the noun, usually with -e

Mostly yes. Here is is the present-tense form of wees (to be).

One important difference from English is that Afrikaans does not change the verb the way English does:

• Ek is = I am
• Jy is = you are
• Hy/Sy is = he/she is
• Ons is = we are
• Hulle is = they are

So is is used with all persons in the present tense.

No, this is a very straightforward sentence.

The structure is:

• Subject: Die vervangingsonderdeel
• Verb: is
• Complement/adjective: beskikbaar

So it follows the same basic pattern as English:

• The replacement part is available.

That makes this sentence a nice example of simple Afrikaans word order.

You would say:

• 'n vervangingsonderdeel is beskikbaar.

Here 'n means a/an.

A couple of useful notes:

• 'n is written with a lowercase n, even at the start of a sentence in normal spelling conventions.
• In pronunciation, the 'n itself is usually very weak.

So:

• Die vervangingsonderdeel is beskikbaar. = The replacement part is available.
• 'n vervangingsonderdeel is beskikbaar. = A replacement part is available.

You would say:

• Die vervangingsonderdeel is nie beskikbaar nie.

Afrikaans normally uses double nie in standard negation:

• first nie after the verb or later in the clause
• second nie at the end of the clause

So:

• is beskikbaar = is available
• is nie beskikbaar nie = is not available

This double negative pattern is one of the most important things to get used to in Afrikaans.

It is singular.

The plural of onderdeel is onderdele, so the plural form is:

• vervangingsonderdele = replacement parts

That gives:

• Die vervangingsonderdeel is beskikbaar. = The replacement part is available.
• Die vervangingsonderdele is beskikbaar. = The replacement parts are available.

Notice that is stays is even with a plural subject.

A rough learner-friendly pronunciation would be:

• Die ≈ dee
• vervangingsonderdeel ≈ fer-VANG-ing-son-der-deel
• is ≈ iss
• beskikbaar ≈ be-SKAYK-bar

A few pronunciation tips:

• v in Afrikaans often sounds closer to f than to a strong English v.
• g is usually a guttural throat sound, not the English g in go.
• die is pronounced like dee, not like English die.

So the whole sentence is roughly:

• dee fer-VANG-ing-son-der-deel iss be-SKAYK-bar

That is only an approximation, but it is a useful starting point.

Yes, but then the structure changes.

After the verb:

• Die vervangingsonderdeel is beskikbaar.
• The adjective is describing the noun through is.

Before the noun:

• die beskikbare vervangingsonderdeel
• This means the available replacement part

When the adjective comes before the noun, it usually takes -e, so beskikbaar becomes beskikbare.

Because Afrikaans does not capitalize all nouns.

Unlike German, Afrikaans only capitalizes:

• the first word of a sentence
• proper nouns
• names, places, languages when appropriate

So in this sentence:

• Die is capitalized because it starts the sentence.
• vervangingsonderdeel and beskikbaar stay lowercase.

That is completely normal in Afrikaans.