| in some periods | 20 | temporal |
| in a number of years | 17 | temporal |
| at times | 14 | temporal |
| return → be → negative | 378 |
| return → turn → negative | 10 |
| return → go → negative | 7 |
| return → become → negative | 4 |
| return → remain → negative | 3 |
| negative | neutral | positive |
| 0.495 | 0.435 | 0.070 |
| Raw frequency | 402 |
| Normalized frequency | 0.765 |
| Modifier score | 0.644 |
| Perplexity | 246.492 |