| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] a [det] | 635 |
|
| 2 | [prep] a [det] years | 581 |
|
| 3 | [adv] a [det] years | 220 |
|
| 4 | [prep] [adv] [det] years | 176 |
|
