IT'S ALL LATIN TO ME I

The following phrases are English translations from Latin. Can you supply the original Latin phrases - which are often themselves used in conversational English?

1. Great work
2. Blank slate
3. Things as they are
4. By the fact itself
5. Genuine
6. Therefore
7. For a particular purpose
8. Repetitious to the extreme
9. Let the buyer beware
10. Guarantee to a speedy trial

Answers:

1. Magnum opus
2. Tabula rasa
3. Status quo
4. Ipso facto
5. Bona fide
6. Ergo
7. Ad hoc 
8. Ad nauseam
9. Caveat emptor
10. Habeas corpus