| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [noun] [adv] a year | 28 |
|
| 2 | [noun sg] [noun sg] [adv] a year | 22 |
|
| 3 | [noun sg] [noun] once a year | 13 |
|
| 4 | [noun sg] [noun] about a year | 7 |
|
| 5 | [noun sg] [noun pl] [adv] a year | 5 |
|
