| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [vb past] [pers pn] [adj] | 138 |
|
| 2 | [det] [verb] [pers pn] difficult | 40 |
|
| 3 | [adj] [vb past] [pers pn] difficult | 11 |
|
| 4 | [det] [vb past] [pron] difficult | 7 |
|
