| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at [det] time | 143 |
|
| 2 | i [vb past] at [det] | 93 |
|
| 3 | i [vb past] [det] time | 53 |
|
| 4 | i at [det] time | 19 |
|
