| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] [det] time [prep] | 170 |
|
| 2 | at about [art] [det] time | 133 |
|
| 3 | at about [art] time [prep] | 14 |
|
| 4 | about [art] [det] time [prep] | 10 |
|
| 5 | at about [det] time [prep] | 5 |
|
