| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [verb] [prep] | 78602 |
|
| 2 | often be [verb] [prep] | 427 |
|
| 3 | [modal v] often be [verb] | 320 |
|
| 4 | [modal v] often [verb] [prep] | 166 |
|
| 5 | [modal v] often be [prep] | 15 |
|
