| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [noun] once [art] | 24 |
|
| 2 | [noun] [prep] [noun] once [art] | 24 |
|
| 3 | [noun] [prep] [noun] once a | 16 |
|
| 4 | [noun] [prep] [noun] once a | 16 |
|
| 5 | [noun sg] [prep] [noun] once [art] | 16 |
|
| 6 | [noun] [prep] [noun sg] once [art] | 10 |
|
| 7 | [noun] [prep] [noun prp] once [art] | 9 |
|
| 8 | [noun] of [noun] once [art] | 7 |
|
| 9 | [noun] [prep] [noun] once the | 7 |
|
| 10 | [noun] of [noun] once [art] | 7 |
|
| 11 | [noun] [prep] [noun] once the | 7 |
|
