| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] difficult it is for | 13 |
|
| 2 | [verb] how difficult it is for | 13 |
|
| 3 | [verb] how difficult it is for | 13 |
|
| 4 | [verb] [adv] difficult it is for | 13 |
|
| 5 | [verb] [Wh adv] difficult it is for | 13 |
|
| 6 | [vb base] [adv] difficult it is for | 7 |
|
| 7 | know [adv] difficult it is for | 5 |
|
| 8 | know [adv] difficult it is for | 5 |
|
