| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] which [num] [noun] | 491 |
|
| 2 | [prep] which [num] [noun] | 491 |
|
| 3 | during [pron] [num] [noun] | 176 |
|
| 4 | during which [adj] [noun] | 83 |
|
| 5 | during which [num] [noun] | 15 |
|
