Ho freddo, quindi mi metto il cappotto.

In Italian, ho freddo literally means I have cold, but it is the normal way to say I am cold.

Italian uses avere (to have) with sensations like:

• ho freddo = I’m cold
• ho caldo = I’m hot
• ho fame = I’m hungry
• ho sete = I’m thirsty

If you say sono freddo, it usually means I am a cold person/thing or my body feels cold to the touch, not the everyday idea I feel cold.

Italian often leaves out subject pronouns because the verb ending already shows who the subject is.

• ho = I have
• metto = I put on

So Ho freddo already clearly means I am cold / I feel cold, and mi metto already clearly means I put on.

You can add io for emphasis:

• Io ho freddo, quindi mi metto il cappotto.

This sounds like I’m cold, so I’m putting on my coat with extra emphasis on I.

Quindi means so, therefore, or as a result.

In this sentence:

• Ho freddo, quindi mi metto il cappotto.
• I’m cold, so I’m putting on my coat.

It shows a consequence: being cold leads to putting on the coat.

Other words that can sometimes work similarly are:

• perciò = therefore / so
• allora = so / then

But quindi is a very natural choice here.

Because mettersi is commonly used for putting something on oneself.

• mettere = to put
• mettersi = to put on oneself

So:

• metto il libro sul tavolo = I put the book on the table
• mi metto il cappotto = I put on my coat

The mi means on myself / for myself. It’s very common with clothes:

• mi metto le scarpe = I put on my shoes
• mi metto il cappello = I put on my hat

Mi is the reflexive pronoun for I/myself.

In mi metto il cappotto, it shows that the action comes back to the subject: I am putting the coat on myself.

A rough breakdown is:

• mi = myself / to myself
• metto = I put
• il cappotto = the coat

So the structure is something like: I put the coat on myself.

In natural English, we just say I put on the coat or I put my coat on.

Italian often uses the definite article instead of a possessive with clothing, body parts, and personal items when it is obvious whose item it is.

So:

• mi metto il cappotto = I put on my coat

Even though mio is not there, the meaning is usually understood.

You can say il mio cappotto, but it adds emphasis or contrast, for example:

• Mi metto il mio cappotto, non il tuo. = I’m putting on my coat, not yours.

So in an ordinary sentence, il cappotto is the most natural choice.

Yes. Indossare also means to put on / to wear.

So these can both work:

• mi metto il cappotto
• indosso il cappotto

The difference is mostly one of style and nuance:

• mi metto il cappotto is very common in everyday speech and emphasizes the action of putting it on
• indosso il cappotto is also correct, but can sound a bit more formal or neutral depending on context

Also, indosso can sometimes mean I am wearing, depending on context, while mi metto clearly focuses on the action of putting it on.

Yes, it is present tense: metto = I put / I am putting.

Italian often uses the present tense for something happening right now or something someone is about to do immediately.

So:

• Ho freddo, quindi mi metto il cappotto.

can mean:

• I’m cold, so I’m putting on my coat.
• I’m cold, so I’ll put on my coat.

The exact English translation depends on context, but the Italian present tense is perfectly natural here.

In Italian, object and reflexive pronouns usually come before a conjugated verb.

So:

• mi metto
• ti metti
• si mette

Not:

• metto mi

This is a basic rule with normal finite verb forms.

You will see pronouns attached to the end only with infinitives, gerunds, and imperatives, for example:

• mettermi = to put on myself
• mettendomi = putting on myself
• mettiti il cappotto! = put your coat on!

A very literal translation would be:

• I have cold, therefore I put myself the coat.

But that is not natural English.

A natural English translation is:

• I’m cold, so I put on my coat.
• or I’m cold, so I’m putting on my coat.

Literal translations can help you see the grammar, but they often sound strange because Italian and English structure these ideas differently.

In ho freddo, freddo functions like a noun meaning cold rather than like the adjective cold in English.

That is why Italian uses avere here.

Compare:

• Ho freddo. = I’m cold.
• L’acqua è fredda. = The water is cold.

In the second sentence, fredda is clearly an adjective describing water. In ho freddo, the whole expression is an idiomatic way of talking about the sensation of cold.

It is very natural and helpful, because quindi links two clauses:

• Ho freddo, quindi mi metto il cappotto.

The comma makes the sentence easier to read and reflects a natural pause.

In informal writing, punctuation can vary, but using the comma here is a good choice and very common.