| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [adj] [to-vb] to | 21 |
|
| 2 | it [adv] [adj] [to-vb] to | 20 |
|
| 3 | it [adv] difficult [to-vb] to | 6 |
|
| 4 | it [adv] difficult [to-vb] to | 6 |
|
