| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [be] very difficult for | 61 |
|
| 2 | [pers pn] [be] difficult for us | 19 |
|
| 3 | [be] very difficult for us | 13 |
|
| 4 | [pers pn] very difficult for us | 5 |
|
