| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] while at the [det] time | 8 |
|
| 2 | [adv] while at the [det] [noun] | 8 |
|
| 3 | [adv] while at the [det] time | 8 |
|
| 4 | [adv] while at the [det] [noun sg] | 8 |
|
