| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | three [noun pl] at a [noun] | 47 |
|
| 2 | three [noun pl] at a [noun sg] | 46 |
|
| 3 | three [noun pl] at a [noun] | 45 |
|
| 4 | three [noun pl] at a time | 33 |
|
| 5 | three [noun pl] at a time | 33 |
|
| 6 | three weeks at a [noun] | 8 |
|
| 7 | three days at a [noun] | 6 |
|
