| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adj] [noun pl] | 111582 |
|
| 2 | difficult [verb] [adj] | 356 |
|
| 3 | difficult [verb] [noun pl] | 261 |
|
| 4 | difficult [adj] [noun pl] | 100 |
|
