| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [be] [adj] for [noun] | 37 |
|
| 2 | can [be] [adj] for [noun] | 37 |
|
| 3 | [modal v] [be] difficult for [noun] | 25 |
|
| 4 | can [be] difficult [prep] [noun] | 9 |
|
| 5 | can [be] difficult for [noun] | 5 |
|
