| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] difficult [to-vb] [adv] | 599 |
|
| 2 | [be] difficult [to-vb] [adv] | 195 |
|
| 3 | [be] [adj] [to-vb] just | 94 |
|
| 4 | [be] [adj] [to-vb] just | 91 |
|
| 5 | [be] difficult [to-vb] just | 12 |
|
| 6 | [be] difficult [to-vb] just | 12 |
|
| 7 | [be] difficult [verb] just | 12 |
|
