| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adj] it [verb] | 316 |
|
| 2 | [adv] difficult [pron] [verb] | 41 |
|
| 3 | [adv] difficult [pers pn] [verb] | 33 |
|
| 4 | [adv] difficult it [verb] | 27 |
|
| 5 | [adv] difficult it [verb] | 18 |
|
