| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that it is difficult for [pron] | 7 |
|
| 2 | that it is difficult for [pers pn] | 5 |
|
| 3 | [verb] that it is difficult for | 6 |
|
| 4 | that it is [adv] difficult for | 10 |
|
| 5 | that it is [adv] difficult for | 10 |
|
| 6 | that it is very difficult for | 5 |
|
| 7 | that it is very difficult for | 5 |
|
