| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] a | 51401 |
|
| 2 | can be [vb pp] [prep] | 20640 |
|
| 3 | can be [vb pp] a | 134 |
|
| 4 | can be [prep] a | 50 |
|
