| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [vb pp] [prep] | 31195 |
|
| 2 | had be [prep] | 3664 |
|
| 3 | [vb pp] be [prep] | 715 |
|
| 4 | had [vb pp] be | 542 |
|
