| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adv] difficult [to-vb] [adj] | 119 |
|
| 2 | it [be] [adv] [adj] [to-vb] such | 32 |
|
| 3 | it [be] [adv] difficult [to-vb] such | 7 |
|
| 4 | it [be] [adv] difficult [verb] such | 6 |
|
| 5 | it [be] [adv] difficult [to-vb] such | 6 |
|
| 6 | [pron] [be] [adv] difficult [to-vb] such | 6 |
|
| 7 | [pers pn] [be] [adv] difficult [to-vb] such | 6 |
|
