| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adv] four [noun] | 194 |
|
| 2 | at [adv] four [noun pl] | 177 |
|
| 3 | at [adv] [adj] days | 130 |
|
| 4 | [prep] [adv] four days | 20 |
|
| 5 | [prep] [adv] four days | 20 |
|
| 6 | at [adv] four days | 5 |
|
| 7 | at [adv] four days | 5 |
|
| 8 | at [adv] four day | 5 |
|
