| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | difficult [verb] [conj] | 1093 |
|
| 2 | 's [verb] [conj] | 980 |
|
| 3 | 's difficult [verb] | 303 |
|
| 4 | 's difficult [conj] | 22 |
|
