| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [art] [num ord] four months | 14 |
|
| 2 | over the [num ord] four months | 14 |
|
| 3 | over [art] next four months | 7 |
|
| 4 | over [art] last four months | 5 |
|
