| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] was once [art] [noun sg] | 40 |
|
| 2 | [noun] [was/were] once a [noun sg] | 27 |
|
| 3 | [noun sg] [was/were] once [art] [noun sg] | 22 |
|
| 4 | [noun] [was/were] once the [noun sg] | 18 |
|
| 5 | [noun prp] [was/were] once [art] [noun sg] | 18 |
|
| 6 | [noun pl] [was/were] once [art] [noun sg] | 6 |
|
| 7 | [noun] were once [art] [noun sg] | 6 |
|
