| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [subord] | 1140 |
|
| 2 | it [adv] difficult | 652 |
|
| 3 | [adv] difficult [subord] | 440 |
|
| 4 | it difficult [subord] | 15 |
|
