| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [pers pn] [adj] | 294 |
|
| 2 | which [vb past] [pers pn] [adj] | 171 |
|
| 3 | [pron] [vb past] [pers pn] difficult | 126 |
|
| 4 | which [verb] [pers pn] difficult | 42 |
|
| 5 | which [vb past] [pers pn] difficult | 12 |
|
| 6 | which [vb past] [pron] difficult | 12 |
|
