Respond negatively:

¿Podemos ir a la playa o nadar en la piscina?

I wrote:
No, no podemos ir a la playa o nadar en la piscina.

But it's marking it wrong!

??

Here's why: o = or in an affirmative sentence. The negative counterpart is "ni" = No, no podemos ir a la playa NI n adar en la piscina.

We are not able (We are unable) to go to the beach NOR swim in the pool.

Sra

There could be a few reasons why your response is marked wrong. One possibility is that the question is asking for a positive response, while you have provided a negative response. In this case, you could adjust your response to provide a positive reply.

For example:
Sí, podemos ir a la playa o nadar en la piscina.

If you believe your response is correct and it is still marked wrong, there might be an issue with the system or grading. You can reach out to the relevant authority to clarify the situation and seek assistance.

I'm sorry to hear that your answer is being marked as incorrect. Based on the sentence you provided, "No, no podemos ir a la playa o nadar en la piscina," it seems like an appropriate negative response to the question, which translates to "No, we cannot go to the beach or swim in the pool."

However, if your answer is being marked wrong, there could be a few reasons for this:

1. Spelling or Grammar Mistakes: Make sure you have correctly spelled all the words and used proper grammar. This includes capitalizing the beginning of the sentence, using appropriate punctuation, and correctly conjugating the verbs.

2. Word Order: In Spanish, the word order can sometimes differ from English. Double-check that you have the correct word order in your sentence.

3. Context: Depending on the context or additional information given, the answer might require more detail. Make sure you are addressing all aspects of the question in your response.

If you provide more specific information about the marking, I can try to help you further.