Die draaiknop draai stadig.

Because they are related words.

• draai is the verb to turn / turns
• draaiknop is a compound noun: draai
  • knop

So draaiknop literally means something like turn-knob, meaning a knob that you turn. Afrikaans often builds nouns this way by combining words.

die is the definite article in Afrikaans, so here it means the.

A useful thing to know is that Afrikaans uses die for:

• singular nouns: die draaiknop = the knob
• plural nouns: die draaiknoppe = the knobs

So unlike English, Afrikaans does not change the definite article between singular and plural.

This is normal Afrikaans main-clause word order:

• Die draaiknop = subject
• draai = verb
• stadig = adverb

So it follows the common pattern:

subject + verb + adverb

That is very similar to English:

• The knob turns slowly.

In Afrikaans, adjectives and adverbs often have the same form.

So:

• ’n stadige draaiknop = a slow knob
• Die draaiknop draai stadig = The knob turns slowly

Unlike English, Afrikaans usually does not add a special ending like -ly to make an adverb.

No. Afrikaans verbs usually do not change for person or number in the present tense.

So you get:

• Ek draai = I turn
• Jy draai = you turn
• Die draaiknop draai = the knob turns
• Hulle draai = they turn

This is much simpler than English, where turn becomes turns with he/she/it.

No. draai is the main verb by itself, so no extra is is needed.

The sentence means that the knob is performing the action of turning. Afrikaans often expresses this directly with the simple present:

• Die draaiknop draai stadig.

If you wanted a more explicitly continuous idea, Afrikaans can sometimes use other structures, but the simple present is very common and natural here.

A rough guide:

• draai sounds approximately like dry in English, though the vowel quality is not exactly the same.
• draaiknop is roughly DRY-khnop.

A few details:

• dr is pronounced together at the start
• aa i in draai forms one vowel sound
• knop begins with a pronounced k sound, unlike English knob, where the k is silent

Pronunciation varies a little by accent, but that is a good learner approximation.

Because Afrikaans spelling is generally more phonetic than English spelling.

In Afrikaans:

• knop is pronounced with the k
• spelling often matches pronunciation more closely than in English

So even if the word is related in meaning to English knob, you should not assume English-style pronunciation rules.

The plural is draaiknoppe.

So:

• die draaiknop = the knob
• die draaiknoppe = the knobs

And the sentence in the plural would be:

• Die draaiknoppe draai stadig. = The knobs turn slowly.

Notice that the verb draai stays the same.

Its core meaning is slow or slowly. In many contexts it can suggest a gentle or unhurried movement, but the basic idea is speed, not mood.

So in this sentence, the most direct understanding is:

• the knob turns slowly

If you wanted to emphasize gently rather than slowly, Afrikaans would usually choose a different word or a more specific phrase.

Yes. Afrikaans uses compound nouns very often, just like Dutch and German.

Examples of the same pattern:

• deurknop = door knob
• huisdeur = house door / front door
• tafelblad = table top

So draaiknop is very normal Afrikaans word-building: one word made from smaller meaningful parts.

No. As written, it is a statement, not a command.

• Die draaiknop draai stadig. = The knob turns slowly.

A command would need a different structure, for example:

• Draai die draaiknop stadig. = Turn the knob slowly.

So word order is important here.