| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [adj] years | 9855 |
|
| 2 | [noun] [prep] [num] years | 6781 |
|
| 3 | [noun] [prep] four [noun] | 2214 |
|
| 4 | [noun] [prep] four [noun pl] | 1918 |
|
| 5 | [noun] [prep] four year | 328 |
|
| 6 | [noun] [prep] four years | 324 |
|
| 7 | [noun] [prep] four years | 324 |
|
