| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adj] [to-vb] [adj] [noun] | 338 |
|
| 2 | it difficult [to-vb] [adj] [noun] | 65 |
|
| 3 | it difficult [verb] [adj] [noun] | 65 |
|
| 4 | [pers pn] difficult [to-vb] [adj] [noun] | 65 |
|
| 5 | [pron] difficult [to-vb] [adj] [noun] | 65 |
|
