| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] at the time | 416 |
|
| 2 | [subord] at the time | 119 |
|
| 3 | whether at the [noun] | 21 |
|
| 4 | whether [prep] the time | 7 |
|
| 5 | whether at the time | 7 |
|
| 6 | whether at the time | 7 |
|
| 7 | whether [prep] the time | 7 |
|
| 8 | whether at [art] time | 7 |
|
