| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | or [adv] [art] year [prep] | 7 |
|
| 2 | or [adv] a year [prep] | 7 |
|
| 3 | or [adv] [art] year [prep] | 7 |
|
| 4 | or [adv] a year [prep] | 7 |
|
| 5 | or twice [art] year [prep] | 5 |
|
