| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [adv] a year | 191 |
|
| 2 | [noun] [adv] a year | 191 |
|
| 3 | [noun sg] [adv] a year | 117 |
|
| 4 | [noun] once a year | 53 |
|
| 5 | [noun pl] [adv] a year | 35 |
|
| 6 | [noun] over a year | 33 |
|
| 7 | [noun prp] [adv] a year | 29 |
|
| 8 | [noun] about a year | 29 |
|
| 9 | [noun] twice a year | 23 |
|
| 10 | [noun] almost a year | 13 |
|
| 11 | [noun] only a year | 9 |
|
| 12 | [n mass] [adv] a year | 8 |
|
| 13 | [noun] nearly a year | 7 |
|
