| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] it [is] difficult [to-vb] [that] | 9 |
|
| 2 | [coord] it [is] difficult [verb] that | 9 |
|
| 3 | [coord] it is difficult [verb] [that] | 8 |
|
| 4 | [coord] it [is] difficult to believe [that] | 7 |
|
| 5 | [coord] it [is] difficult believe [that] | 7 |
|
| 6 | and it [is] difficult [verb] [that] | 6 |
|
