| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] [adj] and hard [prep] | 6 |
|
| 2 | have [to-vb] [adj] and hard [prep] | 5 |
|
| 3 | [to-vb] [adj] and hard [prep] [verb] | 5 |
|
| 4 | [to-vb] [adj] and hard [prep] [v-ing] | 5 |
|
