| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had once [verb] | 636 |
|
| 2 | had once [vb pp] | 630 |
|
| 3 | had [adv] stood | 49 |
|
| 4 | had [adv] stood | 40 |
|
| 5 | had once stand | 12 |
|
| 6 | have once stood | 12 |
|
| 7 | had once stood | 12 |
|
| 8 | [verb] once stood | 12 |
|
| 9 | [vb past] once stood | 12 |
|
