| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] do at the time | 15 |
|
| 2 | be do at the time | 15 |
|
| 3 | [be] doing at the time | 11 |
|
| 4 | [was/were] do at the time | 8 |
|
| 5 | were do at the time | 6 |
|
