To have three main points your writing about in your topic. For example.... Timmy likes bread because it's tasty, delicious, and healthy
The underlined subject of the sentence the skyscraper that was built last year is a noun phrase.When determining the type of phrase, you first need to find its center, of the most prominent word. Here, the center is skyscraper, which is a noun, which means that the whole phrase is a noun phrase.
Follow you on what? I need a answer to this lol