| |||
| no usado; sin usar | |||
| no utilizado | |||
|
unused : 21 phrases in 12 subjects |
| Communications | 2 |
| Computers | 1 |
| Ecology | 1 |
| Economics | 1 |
| Electronics | 1 |
| Finances | 6 |
| Fish farming pisciculture | 1 |
| Information technology | 1 |
| Isolation | 1 |
| Labor law | 1 |
| Mechanic engineering | 2 |
| Transport | 3 |