| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] four years | 324 |
|
| 2 | in [noun] [prep] four | 110 |
|
| 3 | in [noun] [prep] years | 42 |
|
| 4 | in [noun] four years | 23 |
|
