In this case, we construct sentences with going to when we want to indicate intentions , plans , or predictions based on clear evidence. It's a fundamental construction in both everyday and formal language, and learning it will allow you to clearly express what you intend to do or what you think will happen.
To learn it—as always—there's a more effective method than all the others: analyzing example sentences! This way, you can see how the construct behaves in a real, concrete context.
For this reason, in the following article-lesson, we will look together at 30 sentences with be going to , which will help you better understand how to use this structure in various contexts, from organizing your future commitments to making personal predictions.