| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at once [prep] a | 22 |
|
| 2 | [noun] at once [prep] a | 9 |
|
| 3 | [vb past] at once [prep] a | 8 |
|
| 4 | [vb pp] at once [prep] a | 6 |
|
| 5 | [adv] at once [prep] a | 5 |
|
| 6 | at [adv] once [prep] a | 5 |
|
| 7 | at [adv] once [prep] a | 5 |
|
| 8 | at least once [prep] a | 5 |
|
| 9 | at least once [prep] a | 5 |
|
| 10 | at once [verb] [prep] a | 10 |
|
| 11 | at once [vb pp] [prep] a | 8 |
|
| 12 | at once [prep] a [adj] | 22 |
|
| 13 | at once [prep] a [adj] | 22 |
|
| 14 | at once [prep] a [noun] | 20 |
|
| 15 | at once [prep] a [noun sg] | 20 |
|
