| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | n't [vb infin] at the time | 25 |
|
| 2 | n't know at the time | 12 |
|
| 3 | n't know at the time | 12 |
|
| 4 | n't [vb pp] at the time | 6 |
|
| 5 | n't realise at the time | 5 |
|
