| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] which [pron] [verb] [to-vb] | 573 |
|
| 2 | [prep] which [pron] [verb] [to-vb] | 573 |
|
| 3 | during which [pron] [verb] [verb] | 45 |
|
| 4 | during [pron] [pron] [verb] [to-vb] | 15 |
|
| 5 | during which [pron] [verb] [to-vb] | 15 |
|
