| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] for certain | 13 |
|
| 2 | [modal v] [vb infin] for certain | 13 |
|
| 3 | [modal v] know for certain | 6 |
|
| 4 | [modal v] know for certain | 6 |
|
| 5 | will [verb] for certain | 5 |
|
