| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] [adv] | 2391 |
|
| 2 | had [adv] [adv] | 2105 |
|
| 3 | [verb] [adv] once | 456 |
|
| 4 | [vb past] [adv] once | 130 |
|
| 5 | have [adv] once | 65 |
|
| 6 | had [adv] once | 49 |
|
| 7 | had [adv] once | 32 |
|
