| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [prep] be | 15373 |
|
| 2 | [modal v] be [prep] | 14386 |
|
| 3 | [modal v] [prep] be | 4615 |
|
| 4 | [modal v] be be | 25 |
|
