| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] can never [be] certain | 5 |
|
| 2 | [pron] can never [be] certain | 5 |
|
| 3 | can never [be] certain [that] | 6 |
|
| 4 | can never [be] certain [conj] | 6 |
|
| 5 | can never [be] certain that | 6 |
|
| 6 | can never [be] certain that | 6 |
|
