| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] at the time [prep] | 140 |
|
| 2 | [be] [adv] at the time | 75 |
|
| 3 | [be] at the time [prep] | 53 |
|
| 4 | [be] [adv] the time [prep] | 47 |
|
