| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] have | 1017 |
|
| 2 | had [adv] have | 637 |
|
| 3 | had once [verb] | 636 |
|
| 4 | [verb] once have | 33 |
|
| 5 | have once have | 27 |
|
| 6 | [vb past] once have | 26 |
|
| 7 | had once have | 19 |
|
