| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be hard for [pron] [to-vb] | 7 |
|
| 2 | [modal v] be hard for [pron] [to-vb] | 7 |
|
| 3 | [modal v] be hard for [pron] [to-vb] | 6 |
|
| 4 | [modal v] be hard for [pers pn] [to-vb] | 5 |
|
