| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it [verb] [adj] [noun] | 601 |
|
| 2 | [verb] it difficult [verb] [noun] | 118 |
|
| 3 | [verb] it difficult [verb] [adj] | 118 |
|
| 4 | it difficult [verb] [adj] [noun] | 65 |
|
| 5 | [verb] difficult [verb] [adj] [noun] | 14 |
|
