| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [vb pp] [prep] | 42872 |
|
| 2 | be [vb pp] [prep] an | 9184 |
|
| 3 | [prep] be [prep] an | 118 |
|
| 4 | [prep] be [vb pp] an | 82 |
|
