| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they had be [vb pp] | 972 |
|
| 2 | had be [vb pp] at | 549 |
|
| 3 | they be [vb pp] at | 268 |
|
| 4 | they had [vb pp] at | 92 |
|
| 5 | they had be at | 18 |
|
