| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] [adv] [adj] for | 419 |
|
| 2 | [verb] [be] [adv] difficult [prep] | 30 |
|
| 3 | [verb] [be] [adv] difficult [prep] | 30 |
|
| 4 | [verb] [be] [adv] difficult for | 22 |
|
