| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] which at that time | 10 |
|
| 2 | which at that time [was/were] | 15 |
|
| 3 | which at that time [be] | 15 |
|
| 4 | which at that time be | 15 |
|
| 5 | which at that time was | 13 |
|
| 6 | which at that time [verb] | 13 |
|
| 7 | which at that time [vb past] | 12 |
|
