| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | more [subord] a [noun] | 290 |
|
| 2 | [subord] once a [noun] | 46 |
|
| 3 | more [subord] once a | 21 |
|
| 4 | more [subord] once [noun] | 5 |
|
