| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [adv] a year | 35 |
|
| 2 | [noun pl] [adv] a year | 35 |
|
| 3 | [noun pl] over a year | 10 |
|
| 4 | [noun pl] once a year | 10 |
|
| 5 | [noun pl] twice a year | 5 |
|
