| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adj] to [be] | 1366 |
|
| 2 | it [be] [adj] to [be] | 1284 |
|
| 3 | it [be] difficult [prep] [be] | 66 |
|
| 4 | it [be] difficult to [be] | 66 |
|
| 5 | [pers pn] [be] difficult to [be] | 66 |
|
| 6 | it [be] difficult to [be] | 66 |
|
| 7 | it [be] difficult [prep] [be] | 66 |
|
| 8 | [pron] [be] difficult to [be] | 66 |
|
| 9 | it [be] difficult to [be] | 66 |
|
