| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it difficult [to-vb] [det] | 54 |
|
| 2 | it difficult [verb] that | 10 |
|
| 3 | it difficult [verb] this | 9 |
|
| 4 | it difficult [verb] any | 9 |
|
| 5 | it difficult [verb] such | 7 |
|
| 6 | it difficult [verb] some | 5 |
|
| 7 | it difficult [verb] much | 5 |
|
