| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb past] it difficult | 140 |
|
| 2 | [noun] found [pers pn] difficult | 77 |
|
| 3 | [noun] made [pers pn] difficult | 65 |
|
| 4 | [noun sg] [vb past] [pers pn] difficult | 54 |
|
| 5 | [noun pl] [vb past] [pers pn] difficult | 48 |
|
| 6 | [noun prp] [vb past] [pers pn] difficult | 35 |
|
| 7 | [n mass] [vb past] [pers pn] difficult | 5 |
|
