| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] had be | 2640 |
|
| 2 | [vb past] [ex0] be | 2119 |
|
| 3 | [vb past] had be | 191 |
|
| 4 | [vb past] [ex0] had | 152 |
|
