| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it difficult [prep] | 255 |
|
| 2 | [pers pn] difficult [prep] | 255 |
|
| 3 | [pers pn] difficult for | 217 |
|
| 4 | [pers pn] difficult for | 217 |
|
| 5 | [pers pn] difficult to | 23 |
|
| 6 | [pers pn] difficult to | 23 |
|
| 7 | [pers pn] difficult in | 7 |
|
| 8 | [pers pn] difficult in | 7 |
|
| 9 | [pers pn] difficult at | 6 |
|
| 10 | [pers pn] difficult at | 6 |
|
