| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [verb] | 17250 |
|
| 2 | [adv] difficult [verb] | 3357 |
|
| 3 | it difficult [verb] | 1120 |
|
| 4 | it [adv] difficult | 652 |
|
