Υποθέτω ότι είσαι πολύ απασχολημένος σήμερα, γι’ αυτό δεν σε πήρα νωρίτερα.

Υποθέτω means I suppose, I assume, or I’m guessing depending on context.

Grammatically, it is:

• 1st person singular
• present tense
• from the verb υποθέτω

So the speaker is saying something like I assume/suppose...

It is very common in Greek to use the present tense here, just as in English:

• Υποθέτω ότι... = I suppose that...

ότι introduces a subordinate clause and means that.

So:

• Υποθέτω ότι είσαι... = I suppose that you are...

In natural English, that is often omitted, but in Greek it is very normal to include ότι.

You may also see πως used in similar sentences:

• Υποθέτω πως είσαι πολύ απασχολημένος σήμερα.

Both are common. In this sentence, ότι is simply the conjunction linking I suppose to the rest of the statement.

είσαι is the 2nd person singular form of είμαι (to be), so it means you are.

That matches the person being addressed:

• είμαι = I am
• είσαι = you are
• είναι = he/she/it is

So:

• ότι είσαι πολύ απασχολημένος = that you are very busy

Here πολύ means very.

It is modifying the adjective απασχολημένος:

• πολύ απασχολημένος = very busy

This is a useful pattern:

• πολύ καλός = very good
• πολύ δύσκολο = very difficult
• πολύ αργά = very late

So in this sentence, πολύ is functioning as an adverb of degree.

Yes, it changes to agree with the person being described.

απασχολημένος means busy/occupied and is an adjective. Here it is:

• masculine
• singular
• nominative

It matches an implied masculine you.

If the speaker were talking to a woman, it would be:

• απασχολημένη

Examples:

• Είσαι πολύ απασχολημένος σήμερα. = said to a man
• Είσαι πολύ απασχολημένη σήμερα. = said to a woman

So this word tells you something about the gender of the person being addressed.

σήμερα means today.

Its position here is completely natural:

• είσαι πολύ απασχολημένος σήμερα

Greek word order is fairly flexible, so you could move σήμερα for emphasis:

• Σήμερα είσαι πολύ απασχολημένος.
• Είσαι σήμερα πολύ απασχολημένος.

But the original version sounds very normal and neutral.

In general, Greek often allows more movement than English, but not every option sounds equally natural in every context. The placement here is probably the most straightforward one.

γι’ αυτό means that’s why, for that reason, or so in the sense of consequence.

It comes from για αυτό, but για is shortened before a vowel:

• για αυτό → γι’ αυτό

That is why you see the apostrophe.

So:

• γι’ αυτό δεν σε πήρα νωρίτερα = that’s why I didn’t call you earlier

This expression is extremely common in everyday Greek.

Because σε is an unstressed object pronoun, and in Modern Greek these pronouns normally come before the verb.

So:

• σε πήρα = I called you
• δεν σε πήρα = I didn’t call you

This is the normal order:

• τον είδα = I saw him
• την ξέρω = I know her
• σε πήρα = I called you

So σε is not placed after the verb in neutral standard Greek word order.

Here σε is the weak form of the direct object pronoun meaning you singular.

So in this sentence:

• σε πήρα = I called you

This is different from the preposition σε meaning to / in / at. They look the same, but the function is different.

Compare:

• Σε πήρα. = I called you.
• Σε πήγα σπίτι. = I took you home.
• Πάω σε φίλο. = I’m going to a friend.

In your sentence, σε is clearly the object pronoun because it goes with the verb πήρα.

Yes, literally πήρα is the aorist of παίρνω, whose basic meaning is take or get.

But Greek very often uses παίρνω in phone-related expressions:

• παίρνω τηλέφωνο = to call / phone
• σε πήρα = I called you

So δεν σε πήρα νωρίτερα is short for something like:

• δεν σε πήρα τηλέφωνο νωρίτερα

This is very natural Greek. English learners often expect a verb closer to telephone, but Greek commonly uses take/get in this idiomatic way.

πήρα is the aorist form of παίρνω.

The Greek aorist is often used for a single completed action in the past. Here, the action is:

• calling you

So:

• δεν σε πήρα νωρίτερα = I didn’t call you earlier

It refers to one completed event that did not happen at an earlier time.

If you used an imperfect form, the meaning would shift toward something more ongoing, habitual, or backgrounded. The aorist is the natural choice here because the speaker means a specific action: I didn’t make that call earlier.

νωρίτερα means earlier.

It is the comparative adverb related to νωρίς (early):

• νωρίς = early
• νωρίτερα = earlier

In this sentence:

• δεν σε πήρα νωρίτερα = I didn’t call you earlier

Greek often uses νωρίτερα even when English might simply say earlier without an explicit comparison. It does not necessarily mean earlier than something stated out loud; the comparison can be understood from context.

Yes. Greek allows some variation while keeping essentially the same meaning.

For example:

• Υποθέτω πως είσαι πολύ απασχολημένος σήμερα, γι’ αυτό δεν σε πήρα νωρίτερα.
• Υπέθεσα ότι είσαι πολύ απασχολημένος σήμερα, γι’ αυτό δεν σε πήρα νωρίτερα.
• Νόμιζα ότι είσαι πολύ απασχολημένος σήμερα, γι’ αυτό δεν σε πήρα νωρίτερα.

These are close, but not identical in tone:

• Υποθέτω = I suppose / I assume
• Νόμιζα = I thought
• Υπέθεσα = I assumed

The original sentence sounds natural and neutral. It expresses a polite explanation for not calling sooner.

It is polite and natural, but not especially formal.

Why it sounds polite:

• Υποθέτω softens the statement
• the speaker is giving a reason, not making an accusation
• δεν σε πήρα νωρίτερα sounds like an explanation

It feels like something you could say to a friend, colleague, or acquaintance. It is conversational standard Greek.

If you wanted a more formal version, you might switch to the plural/formal you:

• Υποθέτω ότι είστε πολύ απασχολημένος/απασχολημένη σήμερα, γι’ αυτό δεν σας πήρα νωρίτερα.

So the original is friendly, normal, and considerate in tone.