| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] once [prep] | 60 |
|
| 2 | [vb past] at once [prep] | 58 |
|
| 3 | [vb past] [prep] once to | 22 |
|
| 4 | [vb past] [prep] once to | 22 |
|
| 5 | [vb past] [prep] once into | 5 |
|
| 6 | [vb past] [prep] once by | 5 |
|
| 7 | [vb past] [prep] once by | 5 |
|
| 8 | [vb past] [prep] once into | 5 |
|
| 9 | went [prep] once [prep] | 5 |
|
