| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] [num ord] four years | 252 |
|
| 2 | over [art] [num ord] four | 139 |
|
| 3 | over [art] four years | 11 |
|
| 4 | over [art] [num ord] years | 10 |
|
