| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] at a time | 1497 |
|
| 2 | [noun pl] at a time | 500 |
|
| 3 | [noun] [noun pl] at a | 296 |
|
| 4 | [noun] [noun pl] at time | 6 |
|
