Following question: What are you and your family going to do this weekend? Ex: My mother is going to the office.
Sample answer from me:
I am going to spend the weekend with my family. I will help make dinner with my mother and maintain the garden with my father. I will also finish my chores. In my free time, I will play video games with my friend as well as study French. This is going to be a busy weekend with my family!
French: Je vais passer le week-end avec ma famille. J'aiderai à préparer le dîner avec ma mère et à entretenir le jardin avec mon père. Je finirai également mes tâches ménagères. Pendant mon temps libre, je jouerai à des jeux vidéo avec mon ami et j'étudierai le français. Cela va être un week-end chargé avec ma famille!
I just kind of guessed on what formal and informal meant (like formal being vous and informal being the tu form) but yeah I really hope this helps you. Have a great day.
