| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pron] be [prep] | 1572 |
|
| 2 | [vb past] [pron] be [prep] | 1156 |
|
| 3 | [Wh det] [vb past] [pron] [prep] | 810 |
|
| 4 | [Wh det] [vb past] [pron] be | 215 |
|
| 5 | [Wh det] [vb past] be [prep] | 137 |
|
