| much | 5 | degree |
| for the student | 2 | transitive-object |
| progressively more | 2 | degree |
| skill → be → harder | 9 |
| skill → be → more difficult | 5 |
| skill → become → harder | 3 |
| skill → get → more difficult | 3 |
| negative | neutral | positive |
| 0.532 | 0.398 | 0.070 |
| Raw frequency | 20 |
| Normalized frequency | 0.281 |
| Modifier score | 0.550 |
| Perplexity | 159.916 |