Die tandbederf veroorsaak 'n probleem.

No. Afrikaans uses die as the definite article for all nouns in the singular and plural.

So:

• die tandbederf = the tooth decay
• die probleem = the problem
• die probleme = the problems

Unlike Dutch or German, Afrikaans does not mark grammatical gender with different articles. That makes article use much simpler.

'n is the Afrikaans indefinite article, meaning a or an.

So:

• 'n probleem = a problem

It is always written with a lowercase n and an apostrophe: 'n.

A few useful points:

• At the start of a sentence, it still stays 'n, not 'N.
• The next word is capitalized instead if needed.
  Example: 'n Probleem het ontstaan.

In pronunciation, 'n is usually very weak, like the a in about.

Afrikaans often forms compound nouns by writing them as one word.

So:

• tand = tooth
• bederf = decay / spoilage
• tandbederf = tooth decay

This is very common in Afrikaans, just as in Dutch and German. English often writes similar ideas as two words, but Afrikaans frequently joins them.

Other examples:

• huiswerk = homework
• sonlig = sunlight
• boekrak = bookshelf

So tandbederf is completely normal as a single compound noun.

In Afrikaans, verbs do not change much according to the subject in the present tense.

So:

• Ek veroorsaak = I cause
• Jy veroorsaak = you cause
• Hy veroorsaak = he causes
• Die tandbederf veroorsaak = the tooth decay causes

Unlike English, Afrikaans does not add -s for he/she/it in the present tense.

That is why veroorsaak stays the same.

Yes. This sentence follows normal Afrikaans main-clause word order:

Subject + verb + object

• Die tandbederf = subject
• veroorsaak = verb
• 'n probleem = object

So the structure is:

Die tandbederf veroorsaak 'n probleem.
= The tooth decay causes a problem.

Afrikaans is a verb-second language in main clauses. In a simple sentence like this, the subject comes first and the finite verb comes second.

That is simply the normal Afrikaans spelling of the word probleem, which is closely related to Dutch probleem.

Compare:

• English: problem
• Afrikaans: probleem

Many Afrikaans words are similar to English words but have slightly different spelling. The extra e reflects the Afrikaans vowel pattern.

A rough guide:

• die is usually pronounced like dee
• 'n is a very weak sound, like uh or the vowel in about
• veroorsaak is roughly fuh-ROAR-saak or fuh-ROR-saak, depending on accent

A few pronunciation notes:

• v in Afrikaans is often pronounced close to English f
• oo is a long vowel sound
• aa is also a long vowel
• final k is clearly pronounced

So the sentence sounds approximately like:

dee tand-buh-derf fuh-ROAR-saak uh pruh-BLEEM

This is only an approximation for English speakers, but it can help at first.

Because probleem is indefinite here, not definite.

• die probleem = the problem
• 'n probleem = a problem

The sentence means that tooth decay causes a problem, not a specific already-known problem.

So the article changes according to meaning:

• Die tandbederf veroorsaak 'n probleem. = Tooth decay causes a problem.
• Die tandbederf veroorsaak die probleem. = Tooth decay causes the problem.

Yes. In this sentence, tandbederf is a singular mass noun, much like tooth decay in English.

That is why it takes:

• the singular article die
• a singular verb form, which in Afrikaans looks the same as other present-tense forms anyway

So Die tandbederf is understood as one condition or phenomenon: tooth decay.

Usually, the version with die is the more natural full sentence if you mean the tooth decay or tooth decay as a general identified concept in this context.

However, Afrikaans can sometimes omit articles in more general or headline-like styles, depending on context. For a standard learner sentence, though, it is best to keep:

Die tandbederf veroorsaak 'n probleem.

So if you are learning the basic pattern, use the sentence exactly as given.