You haven't given us any paragraph, however, I'll give you some pointers. So, a paragraph is a series of sentences that are either for, or against the initial main idea (if it is an argumentative, that is, since you'll have pros and cons of the main idea; if it's not an argumentative, you can write only about the pros or the cons, depending on whether you agree with the main idea or not). Think about a table with 4 legs, the upper part is the main idea, while the 4 legs are supporting ideas. IT shouldn't be hard to spot the supporting ides! Good luck!