| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] that it [be] difficult | 58 |
|
| 2 | [verb] that it [be] for | 28 |
|
| 3 | that it [be] difficult for | 25 |
|
| 4 | [verb] it [be] difficult for | 10 |
|
