Sempre que o bebé começa a berrar, toda a gente fica nervosa.

Sempre que means whenever or every time that.

So:

• Sempre que o bebé começa a berrar... = Whenever the baby starts bawling...

It introduces something that happens repeatedly, not just once.

A very similar expression is cada vez que, which also means every time that.

In Portuguese, the definite article is used much more often than in English.

So o bebé is completely natural here. It means the baby, and Portuguese normally keeps the article with subjects like this.

A few examples:

• O João chegou. = João arrived.
• A minha irmã trabalha aqui. = My sister works here.
• O bebé começa a berrar. = The baby starts bawling.

So even if English might sometimes sound less article-heavy, Portuguese often prefers the article.

Bebé means baby.

In European Portuguese, the usual spelling is bebé.

In Brazilian Portuguese, you will usually see bebê instead.

So:

• Portugal: bebé
• Brazil: bebê

Same meaning, different spelling and pronunciation patterns.

Not exactly.

• Chorar = to cry
• Berrar = to shout, to scream, to bawl

With a baby, berrar suggests loud, intense crying — more like to bawl or to scream than simply to cry.

So this sentence gives a stronger impression than:

• O bebé começa a chorar. = The baby starts crying.

Berrar sounds louder, more dramatic, and a bit less neutral.

Because começar is followed by a + infinitive in Portuguese.

So the pattern is:

• começar a + verb

Examples:

• começar a chorar = to start crying
• começar a falar = to start speaking
• começar a berrar = to start bawling / screaming

So começa a berrar is the correct structure.

The present tense is used here to describe a habitual or repeated situation.

This sentence is not about one single moment. It means this happens regularly:

• Whenever the baby starts bawling, everyone gets nervous.

Portuguese often uses the present tense for this kind of general truth or repeated event, just like English does.

If you were talking about one specific past event, you would use the past:

• Sempre que o bebé começou a berrar, toda a gente ficou nervosa. = Whenever the baby started bawling, everyone got nervous.

Toda a gente means everyone or everybody.

Literally, it looks like all the people, but as a fixed expression it means everyone.

It is extremely common in Portuguese.

Examples:

• Toda a gente sabe isso. = Everyone knows that.
• Toda a gente gosta dela. = Everybody likes her.

So in your sentence:

• toda a gente fica nervosa = everyone gets nervous

Because toda a gente is grammatically treated as singular.

Even though it means many people, it behaves like everyone in English:

• Everyone is here, not Everyone are here
• Toda a gente fica nervosa, not ficam nervosas

So the verb must be 3rd person singular:

• toda a gente fica
• not toda a gente ficam

Because nervosa agrees grammatically with gente, which is a feminine singular noun.

So:

• a gente → feminine singular
• toda a gente → still feminine singular
• therefore: fica nervosa

This is grammatical agreement, not biological gender agreement.

That is why Portuguese says:

• Toda a gente ficou surpresa.
• Toda a gente estava cansada.
• Toda a gente ficou nervosa.

Even if the group includes men and women, the adjective stays feminine singular because it agrees with gente.

Here ficar means to become or to get.

So:

• ficar nervosa = to become nervous / to get nervous

This makes sense because the sentence describes a change of state: the baby starts bawling, and then everyone gets nervous.

Compare:

• ser nervoso/a = to be a nervous person by nature
• estar nervoso/a = to be nervous at a particular moment
• ficar nervoso/a = to become nervous

So fica nervosa is exactly the right choice here.

Yes, absolutely.

Both word orders are natural:

• Sempre que o bebé começa a berrar, toda a gente fica nervosa.
• Toda a gente fica nervosa sempre que o bebé começa a berrar.

The version with sempre que first puts more focus on the repeated trigger: whenever the baby starts bawling...

Also, when the sempre que clause comes first, the comma is natural and standard.

Because this sentence describes something that happens regularly and is presented as a real, repeated fact.

So the indicative is natural:

• Sempre que o bebé começa a berrar...

If you are talking about a more future-oriented or hypothetical repeated event, Portuguese can use the future subjunctive:

• Sempre que o bebé começar a berrar, avisa-me. = Whenever the baby starts bawling, let me know.

So:

• começa = habitual/repeated fact
• começar = future or more conditional-type context

Yes, mainly in the spelling bebé.

That spelling is standard in Portugal.

A Brazilian version would more likely be:

• Sempre que o bebê começa a berrar, todo mundo fica nervoso.

Some notes:

• Portugal: bebé
• Brazil: bebê
• Portugal often says toda a gente
• Brazil very often says todo mundo

Also, in Portugal, berrar is very natural in this kind of sentence.