| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [noun] ['s] [noun] | 203 |
|
| 2 | once [noun] ['s] [noun] | 20 |
|
| 3 | once been [noun] ['s] | 8 |
|
| 4 | once been [noun] [noun] | 8 |
|
