| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [be] [adj] | 4741 |
|
| 2 | has [be] [adj] | 3718 |
|
| 3 | [verb] [be] difficult | 217 |
|
| 4 | have [be] difficult | 180 |
|
| 5 | [vb -s] [be] difficult | 57 |
|
| 6 | has [be] difficult | 40 |
|
