| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be for [pers pn] [verb] | 292 |
|
| 2 | difficult for [pers pn] [verb] | 282 |
|
| 3 | be difficult for [pers pn] | 162 |
|
| 4 | be difficult [pers pn] [verb] | 9 |
|
