| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [prep] | 3664 |
|
| 2 | [Wh pn] had be | 3096 |
|
| 3 | [Wh pn] be [prep] | 3015 |
|
| 4 | [Wh pn] had [prep] | 142 |
|
