| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] [been] [verb] at the | 19 |
|
| 2 | had [adv] been [verb] at the | 19 |
|
| 3 | had [adv] be [verb] at the | 19 |
|
| 4 | had [adv] [be] [vb pp] at the | 17 |
|
