| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] difficult [to-vb] [adv] | 599 |
|
| 2 | [be] [to-vb] just [adv] | 12 |
|
| 3 | [be] difficult [to-vb] just | 12 |
|
| 4 | difficult [to-vb] just [adv] | 12 |
|
