| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | than [prep] a [noun] | 454 |
|
| 2 | once [prep] a [noun] | 416 |
|
| 3 | than once a [noun] | 31 |
|
| 4 | than once [prep] a | 11 |
|
| 5 | than once [prep] [noun] | 8 |
|
