| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] year | 590 |
|
| 2 | [adv prt] [prep] a [det] | 394 |
|
| 3 | [adv prt] [prep] a year | 110 |
|
| 4 | [adv prt] [prep] [det] year | 110 |
|
| 5 | [adv prt] a [det] year | 30 |
|
