| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did [not/n't] realise at [art] time | 7 |
|
| 2 | [vb past] [not/n't] realise at [art] time | 7 |
|
| 3 | do [not/n't] realise at [art] time | 7 |
|
| 4 | [verb] [not/n't] realise at the time | 7 |
|
