If the verb is plural:
* "They": This is the most common pronoun to use when referring to two people.
* Example: Juan and you are going to the store. --> They are going to the store.
If the verb is singular:
* "You": You can use "you" if the sentence is directed towards the person being addressed (you).
* Example: Juan and you are welcome to stay for dinner. --> You are welcome to stay for dinner.
* "He and you": You can use "he and you" if referring to Juan specifically, but this can sound awkward.
* Example: Juan and you are responsible for the project. --> He and you are responsible for the project.
Important Note: The pronoun you use depends on the specific sentence and the intended meaning. Consider the context and the verb's agreement when choosing the appropriate pronoun.