| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adj] is [verb] | 523 |
|
| 2 | [adv] difficult [be] [verb] | 6 |
|
| 3 | [adv] difficult be [verb] | 6 |
|
| 4 | [adv] difficult is [verb] | 6 |
|
| 5 | [adv] difficult [is] [verb] | 6 |
|
