Αν ξεχάσω το πορτοφόλι μου στο σπίτι, θα ξαναγυρίσω αμέσως.

After αν meaning if, Greek normally uses the subjunctive form for a possible future situation. That is why you get αν ξεχάσω.

• ξεχάσω = subjunctive/perfective form of ξεχνάω / ξεχνώ
• It refers to a single possible event: if I forget

Why not the others?

• αν ξεχνάω would suggest a more habitual or ongoing idea, like if I am forgetting / if I tend to forget
• αν θα ξεχάσω is not the normal structure in standard Greek for this kind of if clause

So:

• Αν ξεχάσω... = If I forget...
• This is the natural pattern for a real future possibility.

ξεχάσω is the aorist subjunctive form of the verb ξεχνάω / ξεχνώ.

In practical learner terms, that means:

• it is used for one complete event
• here, that event is forgetting the wallet
• after αν, this form is very common when talking about something that may happen in the future

Compare:

• ξεχνάω = I forget / I am forgetting / I tend to forget
• ξέχασα = I forgot
• να ξεχάσω = for me to forget / that I forget
• αν ξεχάσω = if I forget

So in this sentence, Greek is focusing on the possibility of one future act of forgetting.

θα marks the future, so θα ξαναγυρίσω means I will go back / return again.

The sentence has a very common pattern:

• αν + subjunctive in the if-clause
• θα + verb in the main clause

So:

• Αν ξεχάσω... = If I forget...
• θα ξαναγυρίσω... = I will go back...

This is the standard way to express a likely future condition and its result.

ξανα- means again.
So:

• γυρίζω / γυρίσω = turn, return, go back
• ξαναγυρίζω / ξαναγυρίσω = return again, go back again

In this sentence, ξαναγυρίσω emphasizes that the speaker will go back because they left something behind.

In natural English, you might simply say I’ll go back immediately, even though Greek uses the idea of again more explicitly.

No. γυρίζω is a flexible verb. Depending on context, it can mean:

• turn
• go around
• return / go back
• sometimes even film/shoot in certain contexts

Here, because of στο σπίτι and the situation with the forgotten wallet, it clearly means go back / return.

So θα ξαναγυρίσω αμέσως means something like:

• I’ll go back immediately
• I’ll return right away

In Greek, possessive pronouns like μου, σου, του usually come after the noun:

• το πορτοφόλι μου = my wallet
• το σπίτι μου = my house
• η φίλη μου = my friend

So το πορτοφόλι μου is the normal way to say my wallet.

Greek uses the article very often with possessed nouns, so you usually say:

• το πορτοφόλι μου not just
• πορτοφόλι μου

Greek normally keeps the definite article with possessed nouns. So where English says:

• my wallet

Greek says:

• the wallet my = το πορτοφόλι μου

This is completely normal Greek structure. The article is not optional in most ordinary cases.

Other examples:

• το βιβλίο μου = my book
• η αδερφή μου = my sister
• οι φίλοι μου = my friends

στο is the contraction of σε + το.

So:

• σε το σπίτι becomes στο σπίτι

Greek usually uses the article here:

• στο σπίτι = at home / to the house / in the house, depending on context

In this sentence, στο σπίτι means at home or at the house.

So:

• ξεχάσω το πορτοφόλι μου στο σπίτι = forget my wallet at home

You determine that from the verb and context.

Here the verb is ξεχάσω = forget/leave behind, so στο σπίτι is interpreted as location:

• at home
• in the house

It does not mean motion toward the house here.

Greek often uses the same preposition structure where English may choose different ones, so context matters a lot.

αμέσως means:

• immediately
• right away
• at once

So θα ξαναγυρίσω αμέσως means:

• I’ll go back immediately
• I’ll return right away

It adds urgency: the speaker will not wait.

Yes, Greek word order is fairly flexible, especially with adverbs.

These are all possible, with small differences in emphasis:

• θα ξαναγυρίσω αμέσως
• αμέσως θα ξαναγυρίσω
• θα αμέσως ξαναγυρίσω — this one is much less natural

The most natural version here is the original:

• θα ξαναγυρίσω αμέσως

Putting αμέσως at the end sounds neutral and natural.

It expresses a real possible future condition:

• If I forget my wallet at home, I’ll go back immediately.

The speaker is not talking about an impossible or highly unreal condition. They are simply describing what they will do in case that happens.

That is why Greek uses:

• αν + subjunctive
• θα + future

This is the normal pattern for everyday future conditions.

Yes, but it would not mean exactly the same thing.

• Αν ξεχάσω το πορτοφόλι μου... = If I forget my wallet...
• Αν έχω ξεχάσει το πορτοφόλι μου... = If I have forgotten my wallet...

The second version focuses more on the result or realization that the wallet has already been left behind. The original sentence is simpler and more natural for a general future condition.

Yes, πορτοφόλι is the standard word for wallet or purse in many everyday contexts.

Its grammatical gender is neuter, which is why you see:

• το πορτοφόλι
• το πορτοφόλι μου

Because it is neuter singular, the article is το.

A more precise Greek version could be:

• Αν αφήσω το πορτοφόλι μου στο σπίτι, θα ξαναγυρίσω αμέσως.

Here:

• αφήσω = leave

The original sentence with ξεχάσω is still very natural, because in English too, forget my wallet at home often really means leave it behind at home by mistake.

A rough pronunciation guide is:

• An kseh-HA-so to por-to-FOH-lee moo sto SPEE-tee, tha ksa-na-yee-REE-so a-MEH-sos.

A few useful points:

• χ in ξεχάσω is a throaty sound, not like English h
• γυ in γυρίσω sounds more like yi than hard g
• stress matters:
  • ξεχάσω
  • πορτοφόλι
  • γυρίσω
  • αμέσως

Not perfectly. A word-for-word breakdown would be something like:

• Αν = if
• ξεχάσω = I forget
• το πορτοφόλι μου = my wallet
• στο σπίτι = at home / in the house
• θα ξαναγυρίσω = I will return again / go back again
• αμέσως = immediately

A natural English translation would usually be:

• If I forget my wallet at home, I’ll go back immediately.

So the Greek structure and the English structure match fairly well, but not every word maps perfectly one-to-one.