| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] hard [prep] [be] sure | 9 |
|
| 2 | be hard [prep] [be] sure | 9 |
|
| 3 | [is] hard [prep] [be] sure | 6 |
|
| 4 | is hard [prep] [be] sure | 5 |
|
| 5 | hard [prep] [be] sure [conj] | 5 |
|
