| currently | 22 | temporal |
| further | 12 | manner |
| extensively | 8 | degree |
| approach → be → explored | 134 |
| approach → be → investigated | 79 |
| approach → be → studied | 69 |
| approach → be → examined | 57 |
| approach → be → researched | 23 |
| approach → be → study | 8 |
| negative | neutral | positive |
| 0.062 | 0.707 | 0.231 |
| Raw frequency | 370 |
| Normalized frequency | 0.776 |
| Modifier score | 0.695 |
| Perplexity | 62.337 |