| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at least four [noun] | 181 |
|
| 2 | at [adv] four [noun pl] | 177 |
|
| 3 | at [adv] four time | 24 |
|
| 4 | at [adv] four times | 23 |
|
| 5 | at [adv] four weeks | 20 |
|
| 6 | at [adv] four week | 20 |
|
| 7 | at [adv] four year | 19 |
|
| 8 | at [adv] four years | 18 |
|
| 9 | at [adv] four hours | 10 |
|
| 10 | at [adv] four hour | 10 |
|
| 11 | at [adv] four [noun sg] | 9 |
|
| 12 | at [adv] four [n mass] | 7 |
|
| 13 | at [adv] four people | 6 |
|
| 14 | at [adv] four people | 6 |
|
| 15 | at [adv] four months | 6 |
|
| 16 | at [adv] four month | 6 |
|
| 17 | at [adv] four day | 5 |
|
| 18 | at [adv] four days | 5 |
|
