| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [pron] [is] [adv] | 8898 |
|
| 2 | [pron] [is] [adv] difficult | 1175 |
|
| 3 | [coord] [pron] [is] difficult | 265 |
|
| 4 | [coord] [is] [adv] difficult | 22 |
|
