| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] years the | 24 |
|
| 2 | [prep] [det] years in the | 22 |
|
| 3 | [prep] a [det] years in | 11 |
|
| 4 | a [det] years in the | 9 |
|
