| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | than once [prep] [art] | 50 |
|
| 2 | than [adv] [prep] a | 47 |
|
| 3 | than [adv] [prep] a | 43 |
|
| 4 | [conj] once [prep] a | 33 |
|
| 5 | than once [prep] a | 11 |
|
| 6 | than once [prep] a | 11 |
|
