| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] found it difficult [verb] [noun] | 7 |
|
| 2 | [pron] [vb past] it difficult [to-vb] [noun] | 7 |
|
| 3 | [pers pn] [vb past] it difficult [verb] [noun] | 5 |
|
