| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [pers pn] are [adv] [verb] | 159 |
|
| 2 | [pers pn] are [adv] difficult [verb] | 30 |
|
| 3 | but [pers pn] are [adv] difficult | 10 |
|
