| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] a year [adv] | 16 |
|
| 2 | had [verb] a year [adv] | 14 |
|
| 3 | have [verb] a year ago | 7 |
|
| 4 | have [verb] a year earlier | 5 |
|
