| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] at a [noun] | 5783 |
|
| 2 | [noun] at a [noun sg] | 5375 |
|
| 3 | [noun] at [art] time | 4242 |
|
| 4 | [noun] at [art] time | 4242 |
|
| 5 | [noun] [prep] a time | 1840 |
|
| 6 | [noun] at a time | 1497 |
|
| 7 | [noun] at a time | 1497 |
|
