| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] i [vb past] not know | 16 |
|
| 2 | [subord] i did not know | 14 |
|
| 3 | [subord] i [vb past] not know | 14 |
|
| 4 | if i [vb past] not know | 8 |
|
