| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [pers pn] is [verb] | 4861 |
|
| 2 | difficult [subord] [pers pn] [verb] | 122 |
|
| 3 | difficult [pers pn] is [verb] | 69 |
|
| 4 | difficult [subord] [pers pn] is | 21 |
|
