| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not certain that | 36 |
|
| 2 | [is] not certain that | 19 |
|
| 3 | is not certain that | 18 |
|
| 4 | [am/are] not certain that | 13 |
|
| 5 | 'm not certain that | 9 |
|
