| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [conj] a [noun sg] | 592 |
|
| 2 | [conj] once a [noun sg] | 41 |
|
| 3 | and once [art] [noun sg] | 30 |
|
| 4 | [coord] once a [noun sg] | 21 |
|
| 5 | and once a [noun] | 10 |
|
| 6 | and once a [noun sg] | 9 |
|
