| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it hard [to-vb] | 577 |
|
| 2 | it [adv] [to-vb] | 357 |
|
| 3 | hard [adv] [to-vb] | 51 |
|
| 4 | it hard [adv] | 8 |
|
