| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [verb] [prep] the | 23307 |
|
| 2 | difficult [verb] [prep] the | 312 |
|
| 3 | [is] difficult [verb] [prep] | 270 |
|
| 4 | [is] difficult [verb] the | 264 |
|
| 5 | [is] difficult [prep] the | 34 |
|
