| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] had [adv] [verb] | 1382 |
|
| 2 | had [adv] [verb] to | 876 |
|
| 3 | [Wh pn] had [verb] to | 325 |
|
| 4 | [Wh pn] [adv] [verb] to | 252 |
|
