| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be [verb] at the time | 18 |
|
| 2 | to be [verb] at the time | 18 |
|
| 3 | to [be] [verb] at the time | 18 |
|
| 4 | to [be] [vb pp] at the time | 14 |
|
