Dokle god imamo dovoljno vremena, mogu pomoći kumi s popisom gostiju.

Dokle god means as long as in the sense of provided that / for as long as the condition holds.

So:

• Dokle god imamo dovoljno vremena = As long as we have enough time

A useful thing to know is that god here is just a particle used in expressions like this. It does not mean God.

You may also hear similar expressions such as:

• sve dok = as long as / until
• dok god = as long as

In this sentence, dokle god introduces the condition for the main clause.

Imamo is the 1st person plural present tense of imati = to have.

It means we have.

So:

• imam = I have
• imaš = you have
• ima = he/she/it has
• imamo = we have
• imate = you (plural/formal) have
• imaju = they have

In Dokle god imamo dovoljno vremena, the subject is we, even though mi is not stated explicitly.

Croatian often leaves out subject pronouns when the verb ending already makes the subject clear.

Here:

• imamo already tells you the subject is we
• mogu already tells you the subject is I

So Croatian does not need:

• mi imamo
• ja mogu

unless the speaker wants extra emphasis or contrast.

For example:

• Ja mogu pomoći, ali on ne može. = I can help, but he can’t.

In your sentence, the pronouns are unnecessary.

Mogu pomoći means I can help.

Breakdown:

• mogu = I can / I am able to
• pomoći = to help

So together:

• mogu pomoći = I can help

Croatian commonly uses mogu + infinitive just like English uses can + verb.

Examples:

• Mogu doći. = I can come.
• Mogu čekati. = I can wait.
• Mogu pomoći. = I can help.

This is about aspect, which is very important in Croatian verbs.

• pomoći = perfective
• pomagati = imperfective

Very roughly:

• pomoći focuses on a completed act of helping, or helping on a particular occasion
• pomagati focuses on ongoing, repeated, or habitual helping

In this sentence, mogu pomoći sounds natural because it means something like I can help out / I can give help with that task.

Compare:

• Mogu pomoći kumi s popisom gostiju.
  = I can help my godmother / the maid of honor with the guest list.
  one concrete instance of help

• Mogu pomagati kumi svaki dan.
  = I can help her every day.
  repeated/ongoing helping

Because kumi is in the dative case, which is often used for the person receiving help.

The base form is:

• kuma = nominative singular

But after pomoći (to help), Croatian normally uses the dative:

• pomoći komu? čemu? = help to whom? to what?

So:

• kuma → kumi

Examples:

• Pomažem prijatelju. = I am helping my friend.
• Mogu pomoći sestri. = I can help my sister.
• Mogu pomoći kumi. = I can help my godmother / the maid of honor.

So kumi is exactly what you expect after pomoći.

Kuma can mean different things depending on context, including:

• godmother
• female wedding sponsor / maid of honor-like role
• sometimes more broadly a female ceremonial sponsor

In this sentence, the exact English translation depends on context. Grammatically, though, the important point is that kumi is the dative singular of kuma.

The preposition s here means with, and it takes the instrumental case.

So:

• popis = list
• s popisom = with the list

In this sentence, s popisom gostiju means something like:

• with the guest list
• regarding the guest list
• on the guest list

This is a very common structure in Croatian:

• s prijateljem = with a friend
• s autom = with a car
• s problemom = with a problem
• s popisom gostiju = with the guest list

Here it tells you what area the help concerns.

Because gostiju is the genitive plural after popis.

The noun popis means list, and Croatian often uses genitive after nouns like this to mean a list of ...

So:

• gosti = guests (nominative plural)
• gostiju = of guests (genitive plural)

Therefore:

• popis gostiju = list of guests = guest list

This same pattern appears in many phrases:

• čaša vode = a glass of water
• skupina ljudi = a group of people
• popis imena = a list of names
• popis gostiju = a list of guests

Yes. Croatian word order is more flexible than English, although some orders sound more natural in neutral speech.

The original sentence:

• Dokle god imamo dovoljno vremena, mogu pomoći kumi s popisom gostiju.

is a normal, neutral way to say it.

Possible variations include:

• Mogu pomoći kumi s popisom gostiju dokle god imamo dovoljno vremena.
• Kumi mogu pomoći s popisom gostiju dokle god imamo dovoljno vremena.

These all keep basically the same meaning, but the emphasis changes slightly.

For example:

• putting kumi earlier can emphasize who you are helping
• putting the conditional clause first sounds very natural and clear

Because Dokle god imamo dovoljno vremena is a subordinate clause placed before the main clause.

Croatian normally separates this kind of introductory dependent clause with a comma:

• Dokle god imamo dovoljno vremena, mogu pomoći...

This is similar to English:

• As long as we have enough time, I can help...

If the subordinate clause comes after the main clause, punctuation can vary depending on style and rhythm, but with the clause first, the comma is standard.

Most naturally here, it means I can help or I’ll be able to help depending on context.

Croatian mogu covers ability/possibility, so English translation depends on the situation:

• I can help if you are talking about present ability
• I’ll be able to help if you are talking about a future situation
• less often I may help if permission/possibility is meant

In your sentence, because of the condition as long as we have enough time, English often uses either:

• As long as we have enough time, I can help...
• As long as we have enough time, I’ll be able to help...

Both can work.

It means enough time.

Breakdown:

• dovoljno = enough
• vremena = time in a form used after quantity expressions

After words like enough, a lot, a little, Croatian often uses the genitive:

• dovoljno vremena = enough time
• puno ljudi = a lot of people
• malo novca = little money

So even though the basic dictionary form is vrijeme (time), after dovoljno you get:

• vremena

That is completely normal.

Yes, in many contexts dok god would sound natural too.

So these are very close:

• Dokle god imamo dovoljno vremena...
• Dok god imamo dovoljno vremena...

Both can mean as long as we have enough time.

In everyday usage, speakers may prefer one or the other depending on region, style, or habit. For a learner, the key point is that both are acceptable patterns, and in this sentence the meaning stays the same.