| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] that [adj] [art] | 996 |
|
| 2 | difficult [verb] that [art] | 88 |
|
| 3 | difficult [verb] that [adj] | 48 |
|
| 4 | difficult [verb] [adj] [art] | 22 |
|
