| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adj] it is [verb] | 70 |
|
| 2 | [adv] difficult it is [verb] | 67 |
|
| 3 | [adv] difficult it be [verb] | 23 |
|
| 4 | [adv] difficult it [be] [verb] | 23 |
|
| 5 | [adv] difficult it [is] [verb] | 21 |
|
| 6 | [adv] difficult it is [verb] | 21 |
|
| 7 | [adv] difficult [pron] is [verb] | 21 |
|
| 8 | [adv] difficult [pers pn] is [verb] | 21 |
|
