| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [art] [noun sg] | 4404 |
|
| 2 | once [vb past] [art] [noun sg] | 267 |
|
| 3 | which once [vb past] [art] | 29 |
|
| 4 | which once [vb past] [noun sg] | 7 |
|
