| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [prep] [num] years | 200 |
|
| 2 | [adv] [verb] [prep] a [num] | 146 |
|
| 3 | [verb] [prep] a [num] years | 52 |
|
| 4 | [adv] [prep] a [num] years | 44 |
|
| 5 | [adv] [verb] a [num] years | 8 |
|
