| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] we [vb past] | 1776 |
|
| 2 | [Wh det] once [vb past] | 137 |
|
| 3 | we once [vb past] | 44 |
|
| 4 | [Wh det] we once | 9 |
|
