¿Cómo decir "qué harás este fin de semana" en inglés?

lo que estas preguntando allí es: What will you do next weekend? ¿Qué harás el siguiente fin de semana? ¿What would you do on this weekend? yo prefiero preguntar ¿Do you have plans for this weekend? tienes planes para este fin de semana

I absolutely agree with John Godbe's explanation

Yes, it's grammatically correct, but to ask about future plans we wouldn't use the 'will + [infinitive]' form. Instead, 'What are you doing this weekend?' (it's understood that 'this weekend' is in the future) OR 'What are you going to do this weekend?' are both correct and used interchangeably.

La mejor opción sería decir "What are you doing this weekend?" ya que para planes a futuro solemos usar going to en lugar de will. Saludos

Hiiii!! The answer is: What are you doing this weekend? (100% sure) What are going to do this weekend? (it's a plan) IG: inglesenlineamar23

Good evening! Yes, you are absolutely correct. The English translation for "¿Qué harás este fin de semana?" is "What will you do next weekend?" This is a common and natural way to ask someone about their plans for the upcoming weekend in English.

Para planes usamos going to en vez de Will. La pregunta sería... what are You doing this weekend?

Otras opciones para preguntar sobre los planes para el fin de semana son: - What do you have going on this weekend? - What are your plans for the weekend?