In this sentence, gesond comes after the verb is, so it is being used predicatively: is healthy.
In Afrikaans, adjectives used after a linking verb often stay in a basic form:
If an adjective comes before a noun, it often takes an extra -e ending:
So:
That contrast is very useful to learn early.
Because this is a simple main clause, and Afrikaans often has the same basic word order as English in sentences like this:
subject + verb + complement
Here:
So:
That said, Afrikaans word order can differ more in longer sentences, especially with infinitives, separable verbs, and subordinate clauses.
Sometimes yes, but it changes the feel of the sentence.
Die emalje is gesond = The enamel is healthy
This usually refers to a specific enamel, or enamel already known from context.
Emalje is gesond would sound more general or abstract, and in many contexts less natural.
If you mean enamel in general, Afrikaans may still often use die depending on context. English and Afrikaans do not always use articles in exactly the same way, so it is best to learn common phrases from real examples.
Yes. The Afrikaans indefinite article is ’n, which means a/an.
Examples:
It is not used here because the sentence has die, meaning the, not a/an.
So: