| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] that [adj] | 3783 |
|
| 2 | [be] difficult [verb] [adj] | 329 |
|
| 3 | [be] difficult [verb] that | 161 |
|
| 4 | difficult [verb] that [adj] | 48 |
|
