Minha esposa me deixa escolher o filme de sexta-feira à noite.

Because minha has to agree with esposa, which is a feminine singular noun.

• meu = my, used with masculine singular nouns
• minha = my, used with feminine singular nouns

So:

• meu marido = my husband
• minha esposa = my wife

The possessive agrees with the thing possessed, not with the speaker.

That is a very common question. In Brazilian Portuguese, both forms are possible:

• minha esposa
• a minha esposa

Both can mean the same thing here.

Portuguese often uses a definite article before possessives more than English does, but it is not always required. Omitting the article is very normal, especially in everyday speech and writing.

So both of these sound natural:

• Minha esposa me deixa escolher...
• A minha esposa me deixa escolher...

Me is the unstressed object pronoun meaning me.

In this sentence, deixar + someone + infinitive means to let/allow someone to do something.

So the structure is:

• minha esposa = subject
• me deixa = lets me
• escolher = choose

So me is the person being allowed to do the action.

A helpful comparison:

• Ela me deixa escolher. = She lets me choose.
• Ela me deixa sair. = She lets me go out.
• Ela me deixa falar. = She lets me speak.

Because deixa is the conjugated form of the verb deixar.

The subject is minha esposa, which is third person singular, so the verb must match it:

• eu deixo = I let
• você/ele/ela deixa = you/he/she lets

So:

• Minha esposa deixa... = My wife lets...

You use deixar only as the infinitive, like the dictionary form: to let, to leave.

Because after deixar, Portuguese normally uses an infinitive to express the second action.

Pattern:

• deixar + person + infinitive

Examples:

• Ela me deixa escolher.
• Ela me deixa dormir.
• Ela me deixa decidir.

So escolher stays in the infinitive because it depends on deixa.

This is similar to English:

• She lets me choose
• She lets me sleep
• She lets me decide

Here it means let or allow.

That is because of the structure:

• deixar + person + infinitive = to let someone do something

So:

• Minha esposa me deixa escolher... = My wife lets me choose...

But deixar can also mean leave, depending on context:

• Deixei o livro na mesa. = I left the book on the table.
• Ela deixou a bolsa no carro. = She left the bag in the car.

So deixar is a multi-use verb, and the sentence structure tells you which meaning is intended.

Portuguese uses articles more often than English does.

Here, o filme means the movie. It sounds natural because the speaker is talking about the movie they are going to pick.

If you said escolher filme, it would sound less natural in this context.

Compare:

• escolher o filme = choose the movie
• escolher um filme = choose a movie

So o makes it sound more definite or more like the expected thing being chosen.

Here de sexta-feira links filme to Friday.

A natural English equivalent might be:

• the Friday movie
• the movie for Friday
• the movie on Friday

In real usage, the whole phrase o filme de sexta-feira à noite is understood as the movie for Friday night or the Friday-night movie.

Portuguese often uses de in places where English might use:

• of
• for
• an apostrophe
• an adjective-like noun

So you should not translate de too literally every time.

Because à is a contraction, traditionally explained as:

• a
  • a = à

This is called crase.

In time expressions, à noite means:

• at night
• in the evening, depending on context

Very common time expressions include:

• de manhã = in the morning
• à tarde = in the afternoon
• à noite = at night / in the evening

So the accent is not just stress marking. It shows a grammatical contraction.

In Portuguese, the weekdays are usually written in lowercase, not capitalized, unless they begin a sentence.

So:

• segunda-feira
• terça-feira
• quarta-feira
• quinta-feira
• sexta-feira

They are traditionally written with a hyphen because they are compound words.

So sexta-feira is the normal spelling, and lowercase is also normal.

Yes, but there is an important style difference.

In Brazilian Portuguese:

• me deixa is the normal, everyday order
• deixa-me sounds more formal, literary, or closer to European Portuguese style

So for Brazilian Portuguese, Minha esposa me deixa escolher is the best default choice.

Learners should get very used to this Brazilian pattern:

• me deixa
• me ajuda
• me chama
• me fala

By default, it usually sounds like a general or habitual fact:

• My wife lets me choose the Friday-night movie
• My wife lets me choose the movie on Friday nights

The present tense in Portuguese often works this way.

Without more context, it does not strongly suggest one specific Friday only. If the speaker wanted to make it clearly about one specific occasion, they would often add more context, such as:

• Hoje minha esposa me deixa escolher... = Today my wife lets me choose...
• Nesta sexta-feira... = This Friday...

So the plain present tense often gives a general, regular meaning.