It depends on the usage of "break down". Examples: "We are breaking down the set now." Meaning: We are taking down the background and items from the theater production. "My fridge is starting to break down." Meaning: My refrigerator is having some serious problems that are affecting the way it is functioning. "My car broke down this morning." Meaning: My car stopped working. "I will be breaking down the structure of the class at the meeting." Meaning: I will give detailed information about how the class will be taught.

hi i´m from brazil voçe poderia me ajudar a aprender inglês ?