| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [prep] the time [was/were] | 13 |
|
| 2 | who at the time [was/were] | 13 |
|
| 3 | who [prep] the time was | 8 |
|
| 4 | who [prep] the time were | 5 |
|
