| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [prep] | 4611 |
|
| 2 | what [vb past] [prep] | 2590 |
|
| 3 | what be [prep] | 2071 |
|
| 4 | what [vb past] be | 612 |
|
