| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] not realise at the time | 8 |
|
| 2 | did not realise at the time | 7 |
|
| 3 | [vb past] not realise at the time | 7 |
|
| 4 | [vb past] n't realise at the time | 5 |
|
