| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [verb] that | 4088 |
|
| 2 | it [is] difficult [verb] | 1819 |
|
| 3 | [is] difficult [verb] that | 102 |
|
| 4 | it difficult [verb] that | 41 |
|
