You would need to learn and you could, if you try hard enough which you should. And it would have to be an honest attempt, or else it could have dire consequences and hence you should have a proper guide. Although it would have been a lot easier if you just were a little attentive in your classes which you should have been. And hence my time and effort taken to write an answer to your question could have been avoided.
If you can understand the paragraph, congratulations. You just completed the very basic first class. My fellow quorans have expounded on the same. Read those for even better ununderstanding.
Cheers!