Mọi người có quyền nói.

Mọi người means everyone or everybody here.

• mọi = every, all
• người = person, people

Together, mọi người is a very common way to say everyone in everyday Vietnamese.

Depending on context, mọi người can also mean you all / everyone here when speaking directly to a group.

In Vietnamese, mọi người is the natural fixed expression for everyone.

Tất cả means all, but tất cả người by itself is not the normal way to say everyone. If you use tất cả, you would usually say something like:

• tất cả mọi người = absolutely everyone / all people

So in this sentence, mọi người is already complete and natural.

Có quyền literally means to have the right.

So:

• có = have
• quyền = right, authority, entitlement

Together, có quyền nói means have the right to speak.

This often sounds stronger and more formal than just saying someone is allowed to do something. It suggests a legitimate right, not just permission from another person.

Not exactly.

• được nói = be allowed to speak / can speak
• có quyền nói = have the right to speak

Được often focuses on permission or possibility. Có quyền focuses on a right, entitlement, or freedom.

So Mọi người có quyền nói is stronger than just Mọi người được nói.

Because nói can work by itself to mean speak or talk.

Vietnamese often leaves out the object when it is obvious or not important. So:

• nói = speak / talk
• nói gì = say what
• nói sự thật = tell the truth
• nói tiếng Việt = speak Vietnamese

In Mọi người có quyền nói, the point is simply that everyone has the right to speak, so no object is needed.

The structure is:

Mọi người + có quyền + nói
subject + have the right to + verb

So:

• Mọi người = subject
• có quyền = have the right
• nói = speak

It is fairly close to English word order: Everyone has the right to speak.

Yes. Quyền can mean right, power, or authority, depending on context.

For example:

• quyền con người = human rights
• chính quyền = government / authorities
• nắm quyền = hold power

But in có quyền nói, it clearly means have the right.

Yes, in some contexts that translation works.

But the most accurate sense is Everyone has the right to speak.

If you translate it as is allowed to speak, you may lose some of the idea of personal freedom or entitlement. So has the right to speak is usually the better translation.

Nói is completely natural, but other verbs are possible depending on nuance.

For example:

• phát biểu = speak, make a statement, address a group
• lên tiếng = speak up
• bày tỏ ý kiến = express an opinion

So:

• Mọi người có quyền nói = Everyone has the right to speak.
• Mọi người có quyền phát biểu = Everyone has the right to speak publicly / make remarks.
• Mọi người có quyền bày tỏ ý kiến = Everyone has the right to express opinions.

Nói is the simplest and broadest option.

Both can often translate as everyone, but they are built differently.

• Mọi người có quyền nói = Everyone has the right to speak.
• Ai cũng có quyền nói = Everyone / anybody has the right to speak.

Ai cũng literally feels like whoever it is, that person also..., and it is very common in speech. Mọi người is a noun phrase meaning everyone.

Both are natural, but mọi người directly names the group, while ai cũng emphasizes that this applies to all people without exception.

No. That would not be natural Vietnamese.

Có quyền is the normal expression meaning have the right.
You need có here.

So:

• Mọi người có quyền nói = correct
• Mọi người quyền nói = incorrect / unnatural

A rough pronunciation guide is:

Mọi người có quyền nói
≈ moy nguoi kaw kween noy

A few important points:

• mọi has a heavy falling tone
• người has a low falling tone
• có has a rising tone
• quyền has a falling tone
• nói has a rising tone

Also, người and quyền contain vowel sounds that do not match English exactly, so it is best to hear them from native audio if possible.