| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] it is [verb] [adj] | 50 |
|
| 2 | difficult it be [verb] [adj] | 13 |
|
| 3 | difficult it [be] [verb] [adj] | 13 |
|
| 4 | difficult [pers pn] is [verb] [adj] | 12 |
|
| 5 | difficult it is [verb] [adj] | 12 |
|
| 6 | difficult [pron] is [verb] [adj] | 12 |
|
| 7 | difficult it [is] [verb] [adj] | 12 |
|
