| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [pron] 's [adv] [verb] | 319 |
|
| 2 | [pron] 's [adv] difficult [verb] | 220 |
|
| 3 | but [pron] 's [adv] difficult | 24 |
|
| 4 | but [pron] 's difficult [verb] | 18 |
|
