| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | once been [noun] | 41 |
|
| 2 | once [been] [noun pl] | 15 |
|
| 3 | once [been] [noun prp] | 14 |
|
| 4 | once [been] [noun sg] | 12 |
|
| 5 | once [been] part | 6 |
|
| 6 | once [been] part | 6 |
|
