In the first sentence, it seems to me that to know expresses that the speaker experienced the problem/difficulty. I know (about) this difficulty/problem. Recently one of my friends told me that there is distinct difference between 'know of something' and 'know about something' expressions.
Using your example, knowing my rights means that i know i have. Why would you have a problem with this? I saw this sentence in the book 1q84:
'know of' is used when you have personal. Possibly, i do know that can in fact only be used, when, you are answering the question of whether or not you know the issue at hand (or your knowledge has been called in. Can it be used in formal conversation/writing? For me, know implies knowledge of details or individual pieces, while am aware of implies a knowledge only of a whole.
Also explain the difference between the two, thanks. What is the correct usage of phrase you don't know what you don't know? Alright, well, for example, like on saturdays, y’know, what i liked to do. In (2), however, the object of.
Please let me know as soon as you figure it out.