| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | once a [noun] for [noun] | 14 |
|
| 2 | once a [noun sg] for [noun] | 14 |
|
| 3 | once a [noun] for [noun] | 14 |
|
| 4 | once a [noun] for [noun sg] | 9 |
|
| 5 | once a week for [noun] | 5 |
|
| 6 | once a week for [noun] | 5 |
|
