Vou deitar o bebé no berço.

Yes. Vou + infinitive is a very common way to talk about the near future in Portuguese, just like am going to + verb in English.

So:

• vou = I am going
• deitar = to lay / to put down / to put to bed

Together, vou deitar means I’m going to put/lay.

In this sentence, it means something like:

• I’m going to put the baby in the crib
• I’m going to put the baby to bed in the crib

Because Portuguese often leaves out subject pronouns when the verb already makes the subject clear.

• (Eu) vou = I am going
• (Tu) vais = you are going
• (Ele/ela) vai = he/she is going

Since vou clearly shows I, eu is not necessary.

So both are possible:

• Vou deitar o bebé no berço.
• Eu vou deitar o bebé no berço.

The version without eu is very natural.

Here, deitar means to lay someone down or to put someone to bed.

It is often used when someone is being placed in a lying position, especially:

• in bed
• in a crib
• on a sofa, etc.

So in this sentence, deitar o bebé no berço means to place the baby lying down in the crib.

It is not just a general put in every situation. It specifically suggests laying the baby down.

In this sentence, it is closer to lay because it takes a direct object:

• deitar o bebé = to lay the baby down

That matters because English has the lie/lay distinction:

• lie down = no object
• lay someone/something down = with an object

Portuguese works differently, but the idea here is clearly the lay type, because o bebé is the thing/person being laid down.

This is a very common question.

• deitar = to lay someone/something down or to put to bed
• deitar-se = to lie down / to go to bed oneself

Examples:

• Vou deitar o bebé. = I’m going to put the baby to bed.
• Vou deitar-me. = I’m going to lie down / go to bed.

So in your sentence, it is deitar because the speaker is doing the action to the baby, not to themself.

Because Portuguese often uses the definite article where English might or might not use one.

• o bebé = the baby

In this sentence, the baby is understood to be a specific baby, so o is natural.

You could not normally drop it here in standard Portuguese.
Vou deitar bebé no berço sounds wrong.

Bebé is the usual spelling in European Portuguese.
Bebê is the Brazilian Portuguese spelling.

So for Portugal:

• bebé

For Brazil:

• bebê

The meaning is the same: baby.

No berço means in the crib.

It is made from:

• em = in
• o = the

These combine into:

• em + o = no

So:

• no berço = in the crib

This kind of contraction is required in normal Portuguese.

No, not in normal standard Portuguese.

When em comes before o, they contract:

• em + o = no
• em + a = na
• em + os = nos
• em + as = nas

So the correct form is:

• no berço

not:

• em o berço

Yes. Berço is a masculine noun, so it takes masculine articles:

• o berço = the crib
• um berço = a crib

Grammatical gender in Portuguese is a property of the noun itself, and you usually just have to learn it with the word.

Usually, yes, in this kind of sentence.

Berço is the normal word for a baby’s crib/cot. Depending on the variety of English, the best translation may be:

• crib (US English)
• cot (UK English)

So no berço could be understood as either in the crib or in the cot.

Yes, very naturally.

Because deitar o bebé often means to put the baby to bed, not just physically place the baby somewhere.

With no berço, the sentence gives the location too, so possible translations include:

• I’m going to put the baby in the crib.
• I’m going to lay the baby down in the crib.
• I’m going to put the baby to bed in the crib.

The best English version depends on context.

Yes, but the meaning changes slightly.

For example:

• Vou pôr o bebé no berço. = I’m going to put the baby in the crib.
• Vou colocar o bebé no berço. = I’m going to place the baby in the crib.

These are more neutral and focus on placement.

Deitar specifically suggests laying the baby down, often with a bedtime feel.
So deitar is especially natural here.

You would normally use a clitic pronoun:

• Vou deitá-lo no berço. = I’m going to lay him in the crib.

What happened?

• deitar + o becomes deitá-lo

This is a common pattern in Portuguese when an infinitive is followed by o/a/os/as as direct object pronouns.

So:

• deitar o bebé = to lay the baby down
• deitá-lo = to lay him down

This word order is the most straightforward and natural:

• Vou deitar o bebé no berço.

It follows a simple pattern:

• vou deitar = verb phrase
• o bebé = direct object
• no berço = location

Portuguese can sometimes change word order for emphasis, but for a learner, this is the normal order to use.