| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | once [pron] [vb past] be [vb pp] | 42 |
|
| 2 | once [pron] [vb past] [been] [vb pp] | 42 |
|
| 3 | once [pron] [vb past] been [vb pp] | 42 |
|
| 4 | once [pers pn] [vb past] [be] [vb pp] | 41 |
|
| 5 | once [pron] had [be] [vb pp] | 39 |
|
| 6 | once it [vb past] [be] [vb pp] | 21 |
|
| 7 | once it [vb past] [be] [vb pp] | 21 |
|
| 8 | once they [vb past] [be] [vb pp] | 10 |
|
| 9 | once they [vb past] [be] [vb pp] | 10 |
|
| 10 | once he [vb past] [be] [vb pp] | 5 |
|
| 11 | once he [vb past] [be] [vb pp] | 5 |
|
