| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [vb past] [pers pn] [adj] | 72 |
|
| 2 | [conj] [vb past] [pers pn] difficult | 37 |
|
| 3 | [coord] [vb past] [pers pn] difficult | 32 |
|
| 4 | but [verb] [pers pn] difficult | 19 |
|
| 5 | but [vb past] [pers pn] difficult | 10 |
|
| 6 | but [vb past] [pron] difficult | 10 |
|
