Ons vervang die deel.

This sentence follows the normal Afrikaans main-clause pattern: subject + verb + object.

• Ons = subject
• vervang = verb
• die deel = object

So the order is very similar to English in a simple statement.

No. Ons can mean we, us, or our, depending on its role in the sentence.

Here it means we because it comes before the verb and acts as the subject.

Compare:

• Ons vervang die deel. = we replace the part
• Hulle help ons. = they help us
• Ons motor = our car

Usually not in the present tense. Afrikaans verbs are much simpler than English verbs in this respect.

You say:

• ek vervang
• jy vervang
• hy vervang
• ons vervang

So vervang stays the same.

It is the present tense.

In Afrikaans, this form can often cover both English we replace and we are replacing. Context usually tells you which meaning is intended.

If you want to stress that the action is in progress, Afrikaans can also say: Ons is besig om die deel te vervang.

Die is the definite article, equivalent to English the.

A useful feature of Afrikaans is that die does not change for gender. It is used for masculine, feminine, and neuter nouns, and it is also used with plural nouns.

For example:

• die deel = the part
• die dele = the parts

Here it is singular: deel = part.

The plural is usually dele.

So:

• die deel = the part
• die dele = the parts

Because vervang is a transitive verb that can take a direct object.

So Afrikaans can simply say: Ons vervang die deel.

You do not need a preposition here. This works much like English replace the part.

Afrikaans normally uses a double nie for negation:

Ons vervang nie die deel nie.

A simple way to remember it:

• the first nie comes after the verb
• the second nie comes at the end of the clause

This double-negation pattern is very common in Afrikaans.

Yes. Depending on context, Ons vervang die deel can mean:

• we replace the part
• we are replacing the part
• a regular or habitual action
• a step in a procedure

So the same present-tense form can be used in several ways. Context tells you which one is meant.