| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [noun] at the time [prep] | 8 |
|
| 2 | [be] [noun] at the time of | 6 |
|
| 3 | [was/were] [noun] at the time [prep] | 5 |
|
| 4 | [be] [noun sg] at the time [prep] | 5 |
|
