| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | once [conj] [adv] a [noun] [to-vb] | 6 |
|
| 2 | once [conj] [adv] [art] [noun] [to-vb] | 6 |
|
| 3 | once or [adv] [art] [noun] [to-vb] | 6 |
|
| 4 | once or [adv] [art] [noun] [to-vb] | 6 |
|
| 5 | once [conj] twice [art] [noun] [to-vb] | 6 |
|
| 6 | once [conj] [adv] [art] [noun sg] [to-vb] | 6 |
|
| 7 | once [conj] [adv] a [noun] [to-vb] | 6 |
|
| 8 | once [coord] [adv] [art] [noun] [to-vb] | 6 |
|
