| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] know for certain | 18 |
|
| 2 | i know for certain | 9 |
|
| 3 | i know for certain | 9 |
|
| 4 | we know for certain | 7 |
|
| 5 | we know for certain | 7 |
|
