Repita o comando.

It comes from the infinitive repetir, which means to repeat.

So the sentence is built from:

• repetir = the full dictionary form
• repita = a command form of that verb

Because repetir is the infinitive, and here you need the imperative form, since the sentence is giving a command or instruction.

In Brazilian Portuguese, the command form for você is usually based on the present subjunctive. For repetir, that gives:

• que você repita
• therefore the command: Repita

So Repita o comando. is the standard way to say this as a command to você.

It is the command form used with você, and in Brazil você is often the normal everyday way to say you.

So repita is not necessarily extremely formal. It can sound:

• neutral
• polite
• standard

If you are speaking very respectfully, you can also use the same verb form with:

• o senhor
• a senhora

For example:

• O senhor, repita o comando.
• A senhora, repita o comando.

In regions where tu is common, you may also hear repete o comando in informal speech.

Because comando is a masculine singular noun, so the definite article is o.

• o comando = the command

Portuguese often uses definite articles in places where English might leave them out. Here, o comando sounds natural because it refers to a specific command.

Also, the article tells you the noun’s gender and number:

• o = masculine singular
• comando = masculine singular noun

A rough English-friendly pronunciation is:

heh-PEE-tah oo koh-MAHN-doo

A few useful notes:

• The r at the beginning of repita is usually pronounced like a soft throaty h in Brazilian Portuguese.
• The i in repita sounds like ee.
• The o in o is often pronounced like oo.
• The an sound in comando is nasal.
• The final o in comando is usually pronounced like oo in Brazilian Portuguese.

A more natural-sounding approximation would be something like:

heh-PEE-tah u coh-MAHN-doo

Yes, but it depends on who you are addressing and the variety of Portuguese.

In standard grammar:

• repita = command for você
• repete = command for tu

So if you are learning standard Brazilian Portuguese and using você, repita is the safest choice.

That said, real spoken Brazilian Portuguese can vary a lot by region, and you may hear forms used less strictly in everyday speech. For a learner, though, Repita o comando. is the best standard model.

It is omitted, because Portuguese often leaves out the subject in commands.

So instead of saying:

• Você, repita o comando.

people usually just say:

• Repita o comando.

The listener understands that the command is directed at you.

If you do include você, it usually adds emphasis, contrast, or clarity.

No. A period is completely normal.

In Portuguese, commands can end with:

• . for a neutral instruction
• ! for a stronger or more forceful tone

So both are possible:

• Repita o comando.
• Repita o comando!

The one with the period sounds more neutral and instructional.

A very common way is to add por favor.

For example:

• Repita o comando, por favor.
• Por favor, repita o comando.

Both are natural. Adding por favor makes the instruction softer and more polite.

You would say:

Não repita o comando.

Negative commands in Portuguese use the subjunctive-based form, so repita stays the same here.

Compare:

• Repita o comando. = positive command
• Não repita o comando. = negative command

This is a very useful pattern to remember.