Το γκρι παλτό μου είναι δίπλα στην πόρτα.

Το is the definite article, meaning the. Greek usually uses the article in places where English might also use the, so Το γκρι παλτό μου means my gray coat literally as the gray coat my.

Greek very often uses the article together with possessive words like μου. So:

• το παλτό μου = my coat
• literally: the coat my

Leaving out το would usually sound incomplete here.

In Greek, unstressed possessive forms like μου (my), σου (your), του/της (his/her/its) usually come after the noun.

So:

• το παλτό μου = my coat
• η τσάντα σου = your bag

This is very normal Greek word order. English puts the possessive before the noun, but Greek often puts this short form after it.

γκρι means gray and in everyday Greek it is usually indeclinable, meaning it does not change form for gender, number, or case.

So you can say:

• το γκρι παλτό = the gray coat
• η γκρι τσάντα = the gray bag
• τα γκρι παπούτσια = the gray shoes

Unlike many Greek adjectives, γκρι stays the same.

Yes. παλτό is a neuter noun, so it takes the neuter singular article το.

Greek nouns have grammatical gender, and the article must match the noun:

• ο for masculine
• η for feminine
• το for neuter

So:

• το παλτό = the coat

You do not choose the article based on whether a coat is physically male or female; it is just the grammatical gender of the word.

είναι means is or are, from the verb είμαι = to be.

In this sentence, the subject is Το γκρι παλτό μου (my gray coat), which is third person singular, so είναι means is.

A few forms of είμαι are:

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

So είναι can mean both is and are, depending on the subject.

δίπλα means next to / beside.

It often appears:

• by itself in some contexts: Είναι δίπλα. = It’s next door / beside it / nearby, depending on context
• with σε
  • article/noun: δίπλα στην πόρτα = next to the door

So in your sentence, δίπλα στην πόρτα is a location phrase meaning next to the door.

στην is the contracted form of σε + την.

So:

• σε την πόρτα → στην πόρτα

This contraction is standard and very common in Greek.

Other similar contractions are:

• σε το → στο
• σε τον → στον
• σε τους → στους
• σε τις → στις
• σε τα → στα

So δίπλα στην πόρτα literally means beside at-the door, but naturally it means next to the door.

Actually, it is in the accusative singular, but for many feminine nouns like πόρτα, the nominative and accusative singular look the same.

Here is the pattern:

• nominative: η πόρτα = the door
• accusative: την πόρτα = the door

Because στην comes from σε την, and σε takes the accusative, we get:

• στην πόρτα

So the case does change grammatically, but the noun form happens to look the same.

Yes. γκρι is just the adjective gray, so if you remove it, you get:

• Το παλτό μου είναι δίπλα στην πόρτα. = My coat is next to the door.

And yes, Greek word order is somewhat flexible, though some versions are more neutral than others.

The given sentence is the most neutral way to say it:

• Το γκρι παλτό μου είναι δίπλα στην πόρτα.

You could move words for emphasis, but for learners it is best to keep this standard order.

Yes, Greek can say το δικό μου γκρι παλτό, but it usually adds emphasis, something like my own gray coat or the gray coat that is mine.

Compare:

• το γκρι παλτό μου = my gray coat
• το δικό μου γκρι παλτό = my gray coat, with emphasis on ownership

The version in your sentence is the normal, everyday choice.

A simple pronunciation guide is:

To gri pal-TO mou EE-ne DIP-la stin POR-ta.

A slightly more detailed breakdown:

• Το = to
• γκρι = gri
• παλτό = pal-TO
• μου = mou
• είναι = EE-ne
• δίπλα = DIP-la
• στην = stin
• πόρτα = POR-ta

The written accents show you where the stress goes:

• παλτό
• δίπλα
• πόρτα

Yes, there are two big differences from English:

1. Greek uses the article:

   • το παλτό μου
   • literally: the coat my

2. The possessive μου comes after the noun:

   • παλτό μου
   • not μου παλτό

So if you translate word for word, the Greek structure looks more like:

• The gray coat my is next to the door.

Of course, the natural English meaning is still My gray coat is next to the door.