1. of course - Adjective
2. of course - Adverb
3. of course - Interjection
4. of course - Phrase
as might be expected
Source: WordNetOf course the illusion of art is to make one believe that great literature is very close to life, but exactly the opposite is true. Life is amorphous, literature is formal. Françoise Sagan
The cat does not offer services. The cat offers itself. Of course he wants care and shelter. You don't buy love for nothing. William S. Burroughs
Hemingway hated me. I sold 200 million books, and he didn't. Of course most of mine sold for 25 cents, but still... you look at all this stuff with a grain of salt. Mickey Spillane
You never find an Englishman among the under-dogs except in England, of course. Evelyn Waugh
My two fingers on a typewriter have never connected with my brain. My hand on a pen does. A fountain pen, of course. Ball-point pens are only good for filling out forms on a plane. Graham Greene
Of course poets have morals and manners of their own, and custom is no argument with them. Thomas Hardy