| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is difficult [to-vb] [adv] | 352 |
|
| 2 | is difficult [to-vb] [adv] | 100 |
|
| 3 | is [adj] [to-vb] just | 33 |
|
| 4 | is [adj] [to-vb] just | 33 |
|
| 5 | [is] difficult [to-vb] just | 12 |
|
| 6 | be difficult [to-vb] just | 12 |
|
| 7 | [be] difficult [to-vb] just | 12 |
|
| 8 | is difficult [to-vb] just | 9 |
|
| 9 | is difficult [verb] just | 9 |
|
| 10 | is difficult [to-vb] just | 9 |
|
