| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | more [subord] once [prep] | 78 |
|
| 2 | more [subord] once a | 21 |
|
| 3 | [subord] once [prep] a | 10 |
|
| 4 | more [subord] [prep] a | 5 |
|
