| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adj] for [noun] [noun] | 61 |
|
| 2 | it difficult for [noun] [noun] | 8 |
|
| 3 | [pron] difficult for [noun] [noun] | 8 |
|
| 4 | [pers pn] difficult for [noun] [noun] | 8 |
|
| 5 | it difficult [prep] [noun] [noun] | 8 |
|
