| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] at least [det] [noun pl] | 48 |
|
| 2 | at least a [det] [noun pl] | 21 |
|
| 3 | [prep] least a [det] [noun pl] | 21 |
|
| 4 | [prep] at least a [det] | 8 |
|
