| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] it a [noun sg] | 317 |
|
| 2 | [vb base] once a [noun sg] | 36 |
|
| 3 | it once a [noun sg] | 24 |
|
| 4 | [vb base] it once a | 6 |
|
