| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do at [art] time of | 9 |
|
| 2 | do at [art] time of | 9 |
|
| 3 | do at the time of | 7 |
|
| 4 | do at the time of | 7 |
|
| 5 | did at [art] time of | 5 |
|
