Today's class and the question is about the future form.

I'm currently studying in Italy and had a couple of classes today. The oOne of them was a cooking class. We can cook and eat some Italian foods once a week. Also, we could interact with an Italian chef in Italian., so it's one of my favourite one classes.

Today, I have one question. What are the differences between "will", "be going to do", and "be doing"? I've searched about it but I couldn't get it... All of them is something are expressing(Is it better to use "representing"?) something about the future, isn't it aren't they?

Please let me know my grammar mistakes! And I'd also be happy if you have some ideas of about different ways to make construct the sentences and let me know about them. it, I'd be happy.

Thank you for reading!