Η επιβεβαίωση ήρθε αργά, αλλά τουλάχιστον δεν χρειάστηκε άλλη παράταση.

Greek uses the definite article more often than English. Here Η επιβεβαίωση means the confirmation, referring to a specific confirmation already understood from the context.

If you removed the article, it would sound less natural in an ordinary sentence and more like a headline or a very general statement.

Ήρθε is the 3rd person singular aorist of έρχομαι (to come).

So:

• έρχεται = he/she/it comes / is coming
• ήρθε = he/she/it came

The aorist is the normal Greek past tense for a completed event, so Η επιβεβαίωση ήρθε αργά means The confirmation came late.

Because έρχομαι is an irregular verb. Its past stem changes, so learners usually just have to memorize it:

• έρχομαι = I come
• ήρθα = I came
• ήρθε = he/she/it came

You may also see ήλθε, which is more formal or literary. In everyday Modern Greek, ήρθε is very common.

Because αργά is an adverb, and it modifies the verb ήρθε.

• αργός / αργή / αργό = slow, late as an adjective
• αργά = late, slowly as an adverb

Here it describes how/when the confirmation came, so Greek uses the adverb:

• ήρθε αργά = came late

Τουλάχιστον means at least.

In this sentence, it softens the negative idea and adds a kind of consolation:

• Η επιβεβαίωση ήρθε αργά = the confirmation came late
• αλλά τουλάχιστον... = but at least...

So the sense is: something was not ideal, but there was one positive side.

Because δεν is used with the indicative, including ordinary past-tense statements like χρειάστηκε.

Use:

• δεν for factual statements: δεν ήρθε, δεν χρειάστηκε
• μη(ν) mostly with subjunctive, commands, or non-indicative structures

So here:

• δεν χρειάστηκε = it wasn’t needed / there was no need

is exactly what you would expect.

Χρειάστηκε is the past form of χρειάζομαι / χρειάζεται and here it means:

• was needed
• or more naturally in English, there was a need for

So:

• δεν χρειάστηκε άλλη παράταση

means:

• another extension was not needed
• or there was no need for another extension

Greek often does not state the subject explicitly if it is not needed.

Also, this kind of sentence is often understood in an impersonal way, similar to English:

• there was no need for...
• it wasn’t necessary...

Greek does not need a dummy subject like English it or there. The verb alone is enough.

Because άλλη must agree with παράταση, which is feminine singular.

So:

• άλλη = feminine singular form of other / another
• παράταση = feminine singular noun

Together, άλλη παράταση means another extension or a further extension.

In Greek, άλλη very often works by itself in the sense of another / one more, so άλλη παράταση is perfectly natural.

You can say μια άλλη παράταση, but that may sound a bit more marked, and in some contexts it can suggest a different extension rather than simply another one.

So in this sentence, άλλη παράταση is the most natural choice.

It can mean all of those, depending on context.

Here, the meaning is clearly:

• another
• one more
• a further

So άλλη παράταση is best understood as another/further extension, not a different extension.

No. Παράταση means extension, prolongation, or extra time added.

That is different from καθυστέρηση, which means delay.

So the sentence does not mean there was no further delay. It means there was no need to extend something again, such as a deadline, period, or arrangement.

Because αλλά means but, and here it links two full clauses:

• Η επιβεβαίωση ήρθε αργά
• αλλά τουλάχιστον δεν χρειάστηκε άλλη παράταση

In Greek, a comma before αλλά in this kind of sentence is standard.

Yes, Greek word order is fairly flexible, but the version given is very natural.

This order:

• αλλά τουλάχιστον δεν χρειάστηκε άλλη παράταση

puts τουλάχιστον in a very natural place, where it comments on the whole second clause: but at least...

You could move words around for emphasis, but this is the most straightforward and idiomatic version for neutral speech and writing.