| in order | 22 | other |
| usually | 20 | degree |
| prior to | 19 | temporal |
| training → be → required | 751 |
| training → be → necessary | 488 |
| training → be → need | 14 |
| training → be required for → person | 10 |
| training → be required in → addition | 7 |
| training → be required as → condition | 6 |
| training → be → demanded | 3 |
| training → be required in → instance | 3 |
| negative | neutral | positive |
| 0.135 | 0.698 | 0.167 |
| Raw frequency | 1282 |
| Normalized frequency | 0.885 |
| Modifier score | 0.323 |
| Perplexity | 36.537 |