| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] than once [prep] [art] | 50 |
|
| 2 | [adv] than [adv] [prep] a | 27 |
|
| 3 | [adv] than [adv] [prep] a | 24 |
|
| 4 | [adv] than once [prep] a | 11 |
|
| 5 | [adv] than once [prep] a | 11 |
|
| 6 | [adv] [conj] once [prep] a | 11 |
|
