Inspekteer die lugborrel, hoe groot dit ook al is.

It is an imperative sentence, meaning it gives a command or instruction.

• Inspekteer = Inspect
• die lugborrel = the air bubble

So the first part is simply telling someone to do something: Inspect the air bubble.

In Afrikaans, the verb form in commands is usually just the basic verb form, so inspekteer looks the same as the ordinary dictionary form.

In Afrikaans, as in English, commands often leave out the subject because it is understood.

So:

• Inspekteer die lugborrel
  = (You) inspect the air bubble

The implied subject is usually jy (you, singular/informal), but it does not need to be stated.

This part means something like:

• however big it is
• no matter how big it is

It is a common Afrikaans pattern:

• hoe + adjective + dit + ook al + verb

Here:

• hoe groot = however big / how big
• dit = it
• ook al = gives the sense of no matter or however
• is = is

So the whole clause means: however big it is.

Ook al helps create a concessive meaning: even if, no matter, however.

In this sentence, it adds the idea that the instruction still applies regardless of size.

Compare the sense:

• hoe groot dit is = how big it is
• hoe groot dit ook al is = however big it is / no matter how big it is

So ook al is very important here. Without it, the sentence would not have quite the same meaning.

Because this is a subordinate clause, and Afrikaans often sends the finite verb to the end of a subordinate clause.

So:

• main clause: Inspekteer die lugborrel
• subordinate clause: hoe groot dit ook al is

In the subordinate clause, the verb is comes last. This is very normal in Afrikaans.

Dit means it, and here it refers back to die lugborrel.

Afrikaans commonly uses dit for things, objects, and general references, much like English it.

So even though lugborrel is a noun, once it has already been mentioned, Afrikaans can refer back to it with dit:

• die lugborrel = the air bubble
• dit = it

The comma separates the main instruction from the following clause that adds extra information.

• Inspekteer die lugborrel,
• hoe groot dit ook al is.

This punctuation helps show the rhythm and structure:

• first, the command
• then, the condition/qualification: however big it is

In English, you would also often separate this kind of extra phrase with a comma.

Yes. Afrikaans very often writes compound nouns as one word.

So:

• lug = air
• borrel = bubble
• lugborrel = air bubble

This is extremely common in Afrikaans. Where English may use two words, Afrikaans often uses one compound word.

Yes, it could.

For example:

• Hoe groot dit ook al is, inspekteer die lugborrel.

That still means essentially the same thing: However big it is, inspect the air bubble.

Putting the hoe...ook al... clause first gives it a bit more emphasis.

Yes, it is a correct Afrikaans word, and it is fairly transparent to English speakers because it resembles inspect.

It can sound a bit formal or technical depending on context, but it is perfectly natural, especially in instructions, manuals, quality control, or technical descriptions.

Yes. Afrikaans often has more than one way to express the same idea.

A possible alternative would be something like:

• Inspekteer die lugborrel, maak nie saak hoe groot dit is nie.

That also means: Inspect the air bubble, no matter how big it is.

The original version with hoe groot dit ook al is is a neat, compact, and very natural formal-style structure.