| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] which [vb base] | 1970 |
|
| 2 | [prep] which [vb base] | 1970 |
|
| 3 | by which [verb] | 179 |
|
| 4 | by [pron] [vb base] | 165 |
|
| 5 | by which [vb base] | 59 |
|
