| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adj] [verb] [adj] | 2649 |
|
| 2 | [pron] be difficult [verb] [adj] | 247 |
|
| 3 | it be difficult [verb] [adj] | 246 |
|
| 4 | [pers pn] be difficult [verb] [adj] | 246 |
|
| 5 | it [be] difficult [verb] [adj] | 246 |
|
