| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be not difficult [to-vb] that | 20 |
|
| 2 | [pers pn] be not difficult [to-vb] that | 20 |
|
| 3 | [pers pn] is not difficult [to-vb] that | 15 |
|
| 4 | [pers pn] be not difficult to see that | 7 |
|
