| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [to-vb] of | 888 |
|
| 2 | [adj] [to-vb] of | 799 |
|
| 3 | hard [to-vb] [prep] | 525 |
|
| 4 | hard [to-vb] of | 44 |
|
| 5 | hard [verb] of | 43 |
|
