| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adv] four | 327 |
|
| 2 | at least four | 292 |
|
| 3 | at least four | 292 |
|
| 4 | at about four | 19 |
|
| 5 | at about four | 19 |
|
| 6 | at around four | 5 |
|
| 7 | at around four | 5 |
|
