| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [verb] [prep] | 78596 |
|
| 2 | be [verb] [prep] certain | 137 |
|
| 3 | [modal v] [verb] [prep] certain | 70 |
|
| 4 | [modal v] be [verb] certain | 9 |
|
| 5 | [modal v] be [prep] certain | 6 |
|
