| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] difficult [to-vb] | 366 |
|
| 2 | [adv] difficult [to-vb] [coord] | 136 |
|
| 3 | it difficult [to-vb] [coord] | 21 |
|
| 4 | it [adv] [to-vb] [coord] | 13 |
|
| 5 | it [adv] difficult [coord] | 10 |
|
