| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [coord] | 23099 |
|
| 2 | [adv] difficult [verb] | 3357 |
|
| 3 | difficult [verb] [coord] | 376 |
|
| 4 | [adv] difficult [coord] | 300 |
|
