| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] that [noun pl] | 313 |
|
| 2 | [verb] that certain [noun pl] | 165 |
|
| 3 | is [verb] certain [noun pl] | 11 |
|
| 4 | is [verb] that certain | 10 |
|
