| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] know for certain [that] | 5 |
|
| 2 | [pron] know for certain that | 5 |
|
| 3 | [pron] know for certain that | 5 |
|
| 4 | [pron] know for certain [conj] | 5 |
|
