| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] be difficult for i [to-vb] | 13 |
|
| 2 | [pers pn] be difficult for me [to-vb] | 13 |
|
| 3 | it be difficult for i [to-vb] | 13 |
|
| 4 | [pers pn] is difficult for i [to-vb] | 5 |
|
