| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] difficult [subord] it is | 8 |
|
| 2 | [adv] difficult [subord] it is | 7 |
|
| 3 | more difficult [subord] it is | 5 |
|
| 4 | more difficult [subord] it is | 5 |
|
| 5 | difficult [verb] [subord] it is | 7 |
|
| 6 | difficult [to-vb] [subord] it is | 7 |
|
| 7 | difficult [subord] it is [adv] | 5 |
|
| 8 | difficult [subord] it is [verb] | 5 |
|
| 9 | difficult [subord] it is [to-vb] | 5 |
|
