| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] [prep] [adj] | 3397 |
|
| 2 | which [vb past] [prep] [adj] | 1383 |
|
| 3 | which occur [prep] [adj] | 96 |
|
| 4 | [pron] occurred [prep] [adj] | 64 |
|
| 5 | which occurred [prep] [adj] | 39 |
|
