Die verkeer beweeg stadig.

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

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

• singular nouns
• plural nouns
• all grammatical genders

So unlike languages such as German, you do not have to learn different forms like der / die / das. It is simply die in all those cases.

In Die verkeer beweeg stadig, die verkeer = the traffic.

Verkeer is normally treated as a singular mass/collective noun, much like traffic in English.

So even though traffic refers to many vehicles, the noun itself is not usually thought of as a plural count noun. In other words:

• die verkeer = the traffic
• not the traffics

That said, in the present tense, Afrikaans verbs usually do not change form anyway, so the sentence would still use beweeg regardless of person or number.

Beweeg means move or be moving.

In this sentence, it is the main verb in the present tense:

• Die verkeer beweeg stadig = The traffic moves slowly / is moving slowly

A very important Afrikaans feature is that verbs usually do not change according to the subject the way English verbs do. For example, Afrikaans does not add an -s equivalent for he moves / she moves / it moves.

So:

• ek beweeg = I move
• jy beweeg = you move
• die verkeer beweeg = the traffic moves

The verb stays beweeg.

Because stadig is describing how the traffic moves, so it functions as an adverb here: slowly.

In a simple main clause, Afrikaans commonly places this kind of adverb after the verb:

• beweeg stadig = moves slowly

So the sentence structure is very natural:

• Die verkeer = subject
• beweeg = verb
• stadig = adverb

In this sentence, stadig means slowly.

But the same word can also correspond to slow, depending on how it is used. Afrikaans often uses the same basic form for adjective and adverb meanings.

Compare:

• Die verkeer beweeg stadig. = The traffic moves slowly.
• Die verkeer is stadig. = The traffic is slow.

And before a noun, you often get an extra -e:

• stadige verkeer = slow traffic

So:

• stadig after the verb = slowly
• stadig / stadige as an adjective = slow

Yes, but it means something slightly different.

• Die verkeer beweeg stadig focuses on the action: the traffic is moving slowly.
• Die verkeer is stadig describes the traffic as being slow in general.

In many situations, both would sound natural, but beweeg stadig is a bit more vivid because it explicitly talks about movement.

A rough pronunciation guide is:

duh fuh-KEER buh-VAYKH STAA-dukh

A few notes:

• die is often pronounced roughly like duh in everyday Afrikaans
• verkeer has stress on the second syllable: ver-KEER
• g in Afrikaans is usually a throaty sound, not the English g in go
• beweeg has a long vowel sound somewhat like ay in the second syllable
• stadig usually has the stress on the first syllable: STAA-dig

Pronunciation varies a bit by region and speaker, but this will get you close.

Because Afrikaans often uses the simple present tense where English may prefer a progressive form.

So:

• Die verkeer beweeg stadig can mean The traffic moves slowly
• but in normal English context it often translates more naturally as The traffic is moving slowly

Afrikaans does have ways to emphasize an ongoing action, but in a sentence like this, the plain present tense is completely normal.

In a yes/no question, the verb usually comes before the subject:

• Beweeg die verkeer stadig? = Is the traffic moving slowly? / Does the traffic move slowly?

That is a very common Afrikaans pattern:

• statement: Die verkeer beweeg stadig.
• question: Beweeg die verkeer stadig?

In a subordinate clause, Afrikaans usually sends the verb to the end.

For example:

• Ek is laat omdat die verkeer stadig beweeg.
  = I am late because the traffic is moving slowly.

Notice the difference:

• main clause: Die verkeer beweeg stadig.
• subordinate clause: ... omdat die verkeer stadig beweeg.

This is a very important Afrikaans word-order rule to get used to.