A senhora pode experimentar estes óculos aqui, se quiser.

A senhora is a polite, more formal way to say you when speaking to a woman. In Brazil, this is very common in customer service, with strangers, or when showing respect, especially to an older woman.

A less formal version would be:

• Você pode experimentar estes óculos aqui, se quiser.

For a man, you would use o senhor.

Depending on the situation, a senhora can sound respectful, professional, or a bit distant.

Because a senhora is the normal full expression. In Portuguese, forms like a senhora and o senhor include the definite article.

So the subject is not just senhora but a senhora.

At the beginning of the sentence, the a is capitalized only because it starts the sentence:

• A senhora pode...

Because a senhora takes third-person singular verb forms in Portuguese.

So even though it means you, grammatically it behaves like she:

• A senhora pode
• A senhora quer
• A senhora precisa

This is also true for você in Brazilian Portuguese:

• Você pode
• Você quer

So pode is exactly the form you should expect here.

Yes. In this sentence, experimentar means to try on.

It is commonly used for things like:

• clothes
• shoes
• glasses
• accessories

So experimentar estes óculos means try on these glasses.

In Brazil, provar can also be used for try on clothing or accessories. But experimentar is very natural and clear here.

Because óculos is normally treated as a plural noun in Portuguese when it means glasses or eyeglasses.

So standard agreement is plural:

• estes óculos
• meus óculos
• os óculos

If you want to refer to one item, you usually say:

• um par de óculos = a pair of glasses

The singular óculo exists in technical or specialized uses, but it is not the normal everyday word for a pair of glasses.

In the more traditional grammar system:

• este/estes = near the speaker
• esse/esses = near the listener or already mentioned
• aquele/aqueles = farther away

So estes óculos suggests these glasses here, near the person speaking.

However, in everyday Brazilian Portuguese, many people use esse/esses in places where textbooks would expect este/estes. So in real speech, esses óculos would also sound very normal in many situations.

This sentence uses the more careful, standard distinction.

Aqui means here, and it adds a sense of pointing something out physically.

So estes óculos aqui is like saying:

• these glasses here

It helps the speaker indicate the exact glasses they are offering.

Without aqui, the sentence is still correct:

• A senhora pode experimentar estes óculos, se quiser.

But aqui makes it feel more immediate and natural in a real in-store situation.

Because after se in this kind of future or possible condition, Portuguese normally uses the future subjunctive.

The verb querer in the future subjunctive is quiser.

So:

• se quiser = if you want / if you’d like

This is a very common pattern:

• se puder = if you can
• se tiver = if you have
• se for = if it is / if you go

So se quiser is the correct form here.

No. The sentence is complete without it:

• A senhora pode experimentar estes óculos aqui.

Adding se quiser makes the sentence softer and more polite. It works like:

• if you want
• if you’d like

That kind of extra softening is very common in polite Brazilian Portuguese.

You could also say:

• A senhora pode experimentar estes óculos aqui, se a senhora quiser.

But repeating a senhora is not necessary, because the subject is already understood.

Yes, depending on the context.

A senhora is polite and appropriate in many service situations, but with a younger woman or in a casual setting, it may sound overly formal, distant, or as if you are treating her as older than she is.

In a more neutral everyday situation, many Brazilians would prefer:

• Você pode experimentar estes óculos aqui, se quiser.

So the best choice depends on the relationship, age, and level of formality.