| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [noun] [Wh adv] | 462 |
|
| 2 | [prep] time [Wh adv] | 202 |
|
| 3 | [prep] time [Wh adv] | 202 |
|
| 4 | at time [adv] | 179 |
|
| 5 | at time [Wh adv] | 76 |
|
