On the upper-intermediate and advanced EUO levels there are some lessons that deal with word formation. The exercises in this section have a more complex overview and wider possibilities for practice. Here you will practice common prefixes and suffixes.
| 1. Suffixes (1) | 6. Prefixes (3) |
| 2. Suffixes (2) | 7. Prefixes & Suffixes (1) |
| 3. Suffixes (3) | 8. Prefixes & Suffixes (2) |
| 4. Prefixes (1) | 9. Prefixes & Suffixes (3): two-stage formations |
| 5. Prefixes (2) | 10. Prefixes & Suffixes (4): two-stage formations |