| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] certain that a | 6 |
|
| 2 | is [adv] certain that a | 6 |
|
| 3 | is [adv] certain [conj] a | 6 |
|
| 4 | is [adv] certain [that] a | 6 |
|
