Though you will not be asked merely to translate English statements into categorical propositions, you should look over the suggestions for doing this in section 4.7. It will help you learn the form and in a couple of exercises later in the course it will be assumed that you can do this. You will need to memorize the following chart. It is ambiguous . The second version may occur as a protest against someone who claims that only some S's are not P's, when really none of them are.
Some pigs are wild animals.
All elderly members of the Dragon club are inveterate prattlers. No canaries are melancholy creatures. Some holidays spent in the mountains are not stimulating and refreshing vacations. Some professors are terrible bores. It is easy to make mistakes on these.