| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but when they [verb] the | 23 |
|
| 2 | but when they [verb] the | 23 |
|
| 3 | but when they [vb past] the | 19 |
|
| 4 | but when they reach the | 8 |
|
| 5 | but when they reached the | 7 |
|
