| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb -s] [conj] once a | 6 |
|
| 2 | [noun sg] [vb -s] [conj] once a | 6 |
|
| 3 | [vb -s] [conj] once a [noun sg] | 8 |
|
| 4 | [vb -s] [conj] once a [noun] | 8 |
|
