| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] years | 581 |
|
| 2 | [prep] [det] years [pers pn] | 151 |
|
| 3 | a [det] years [pers pn] | 49 |
|
| 4 | [prep] a [det] [pers pn] | 11 |
|
