| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] had [adv] [verb] [adv] | 151 |
|
| 2 | [Wh pn] had [adv] [verb] [adv] | 129 |
|
| 3 | [pron] had once [verb] [adv] | 30 |
|
| 4 | [Wh pn] have once [verb] [adv] | 10 |
|
| 5 | [Wh pn] [verb] once [verb] [adv] | 10 |
|
| 6 | [Wh pn] [vb past] once [verb] [adv] | 10 |
|
| 7 | [Wh pn] had once [verb] [adv] | 10 |
|
