Here is an example of something I have asked about before and have sent you a screen print. Unfortunately, the screen print was undecipherable for you. Here is a different approach.
B1 Pronouns
Reciprocal verbs in Spanish and position of the reflexive pronoun
Which is the correct sentence for "We can't marry each other"?
No podemos casarnos. correct No podemos nos casar. No podemos casar nos. No nos podemos casar. correct Nos no podemos casar.As you can see, there are two correct answers, but that is not what is asked in the question by indicating the, which would mean one answer. This is something which occurs quite often in these lessons.