| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a year | 1994 |
|
| 2 | [prep] year [pers pn] | 258 |
|
| 3 | [prep] a [pers pn] | 136 |
|
| 4 | a year [pers pn] | 131 |
|
