Eu aceito, desde que todo mundo tenha a mesma chance de falar.

Eu aceito means I accept, I agree, or I’m okay with it, depending on context.

In this sentence, it sounds like:

• I agree
• I accept it
• I’m fine with that

The subject pronoun eu is included for clarity or emphasis. In Portuguese, you could also simply say Aceito if the subject is already clear.

Here, desde que means as long as, provided that, or on the condition that.

So the speaker is accepting something, but only under a condition.

Examples:

• Eu vou, desde que você vá também.
  I’ll go, as long as you go too.
• Tudo bem, desde que seja rápido.
  Okay, provided that it’s quick.

Important: desde que can also mean since or ever since in other contexts, but here it clearly introduces a condition.

Because desde que usually triggers the subjunctive when it introduces a condition.

So:

• todo mundo tem = indicative, plain statement of fact
• todo mundo tenha = subjunctive, used after a conditional expression like desde que

That is why the sentence says:

• desde que todo mundo tenha...

This is very common in Portuguese:

• desde que ele venha = as long as he comes
• desde que você faça isso = as long as you do that

Tenha is the present subjunctive form of the verb ter (to have).

For ter, the present subjunctive is:

• eu tenha
• você/ele/ela tenha
• nós tenhamos
• vocês/eles/elas tenham

In this sentence, the subject is todo mundo, which is grammatically singular, so we use:

• todo mundo tenha

Because in Portuguese, todo mundo is grammatically singular, even though it refers to many people.

So you say:

• Todo mundo tem
• Todo mundo fala
• Todo mundo tenha

Not:

• Todo mundo têm
• Todo mundo falam

This is similar in meaning to everyone in English, which also usually takes singular agreement:

• Everyone has a chance not
• Everyone have a chance

Sometimes, but not always in exactly the same way.

Todo mundo means:

• everyone
• everybody

Todos means:

• everyone / all of them / everybody, depending on context

In this sentence, you could say:

• Eu aceito, desde que todos tenham a mesma chance de falar.

That is perfectly natural.

The difference is mostly stylistic:

• todo mundo sounds very common and conversational
• todos can sound a little shorter or slightly more formal depending on context

Also note the verb agreement:

• todo mundo tenha → singular
• todos tenham → plural

Portuguese usually uses the definite article here: a mesma chance = the same chance.

So:

• a mesma chance de falar = the same chance to speak

Leaving out the article would sound unnatural in this sentence.

This pattern is very common:

• o mesmo problema = the same problem
• a mesma ideia = the same idea
• os mesmos direitos = the same rights

Yes, very much. In Brazilian Portuguese, chance often means:

• chance
• opportunity

So a mesma chance de falar means:

• the same chance to speak
• the same opportunity to speak

In many contexts, chance in Portuguese is a normal everyday word. You could also hear oportunidade, which can sound a bit more formal:

• a mesma oportunidade de falar

Both work, but chance is very natural here.

Because after nouns like chance, Portuguese often uses de + infinitive to express what the chance/opportunity is for.

So:

• chance de falar = chance to speak
• chance de participar = chance to participate
• chance de ganhar = chance to win

English often uses to + verb, but Portuguese frequently uses de + infinitive after nouns.

Yes. Falar can mean:

• to speak
• to talk

In this sentence, both are possible translations:

• the same chance to speak
• the same chance to talk

Speak may sound slightly more natural in English if the idea is that each person gets a turn in a discussion, but talk is also understandable depending on context.

It is natural, but whether it is the most natural depends on the situation.

Eu aceito is good when you mean:

• I accept
• I agree
• I’m okay with that

Other natural possibilities could be:

• Tudo bem, desde que todo mundo tenha a mesma chance de falar.
  Okay, as long as everyone has the same chance to speak.
• Eu concordo, desde que todo mundo tenha a mesma chance de falar.
  I agree, as long as everyone has the same chance to speak.

So aceito is correct and natural, but in casual conversation some speakers might choose tudo bem or concordo, depending on nuance.

Yes. Portuguese often drops subject pronouns when the meaning is clear.

So both are possible:

• Eu aceito, desde que todo mundo tenha a mesma chance de falar.
• Aceito, desde que todo mundo tenha a mesma chance de falar.

Including eu can add:

• emphasis
• contrast
• clarity

For example, if someone else disagrees, Eu aceito can emphasize I do accept.

A rough pronunciation guide would be:

eh-ooh ah-SEH-too, DEHZ-jee kee TOH-doh MOON-doh TEHN-yah ah MEHZ-mah SHAHN-see jee fah-LAR

A few useful notes:

• aceito sounds like ah-SEH-too
• desde que in Brazilian speech often sounds closer to DEHZ-jee kee
• tenha sounds like TEHN-yah
• chance is usually pronounced with a sh sound at the beginning: SHAHN-see
• de falar often sounds like jee fah-LAR in connected speech, because unstressed de is commonly pronounced like ji/dji in many Brazilian accents

This is only an approximation, but it helps with the main sounds.

It breaks down like this:

• Eu aceito = main clause
• desde que = conditional connector
• todo mundo tenha a mesma chance de falar = condition in the subjunctive

So the logic is:

I accept / agree, provided that everyone has the same opportunity to speak.

This pattern is very useful:

• Eu faço isso, desde que você me ajude.
  I’ll do it, as long as you help me.
• Nós vamos, desde que haja tempo.
  We’ll go, provided that there is time.

It is a very common way to express agreement with a condition.