Ons wag daarvoor.

• Ons = the subject pronoun, we
• wag = the finite verb, wait
• daarvoor = a pronominal adverb meaning something like for it / for that

So the structure is:

subject + verb + pronominal adverb

Because Afrikaans often combines daar- with a preposition to make a single word:

• daarin = in it / in that
• daarop = on it / on that
• daarmee = with it / with that
• daarvoor = for it / for that

This is a very common pattern. In this kind of word, daar- does not literally mean physical there. It points back to something already mentioned, so it functions more like that or it.

Afrikaans often prefers a pronominal adverb like daarvoor when referring to a thing, idea, situation, or event rather than a person.

So:

• Ons wag daarvoor = the normal compact way to say we are waiting for it/that
• Ons wag vir dit is understandable, but it is often less idiomatic

A very important contrast:

• Ons wag vir hom = we are waiting for him
• Ons wag vir haar = we are waiting for her

For people, you normally use vir + pronoun, not daarvoor.

This is one of those forms that learners usually just need to memorize.

Even though Afrikaans often uses vir as the separate word meaning for, the compound pronominal form is:

• daarvoor
• hiervoor
• waarvoor

not daarvir.

So the safest rule is:

• separate form: often vir
• compound form with daar-/hier-/waar-: learn the fixed word daarvoor

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

Compare:

• Ek wag = I wait / am waiting
• Jy wag = you wait / are waiting
• Ons wag = we wait / are waiting
• Hulle wag = they wait / are waiting

This is much simpler than English.

It can mean either one, depending on context.

Afrikaans simple present often covers both:

• an ordinary present meaning
• an ongoing present meaning

So Ons wag daarvoor can naturally mean:

• We wait for it
• We are waiting for it

If you really want to stress the ongoing action, Afrikaans can say:

• Ons is besig om daarvoor te wag = we are busy waiting for it / we are in the process of waiting for it

But in many everyday situations, the simple Ons wag daarvoor is enough.

Normally, no.

Use daarvoor for a thing, idea, plan, event, or situation. For a person, use vir + pronoun/name.

Examples:

• Ons wag daarvoor = we are waiting for it/that
• Ons wag vir Anna = we are waiting for Anna
• Ons wag vir hom = we are waiting for him

That is a very useful distinction to remember.

You use the usual Afrikaans double negative:

Ons wag nie daarvoor nie.

Pattern:

• Ons = subject
• wag = verb
• nie = first negative marker
• daarvoor = for it/that
• nie = second negative marker

So Afrikaans says, literally:

We wait not for it not

but in natural English: We are not waiting for it.

In a main clause, the verb comes early:

• Ons wag daarvoor.

But after dat, the verb usually moves to the end:

• Ek weet dat ons daarvoor wag. = I know that we are waiting for it.

So this sentence is useful for seeing the contrast:

• main clause: Ons wag daarvoor
• dat-clause: dat ons daarvoor wag