| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did n't [vb infin] [prep] the time | 20 |
|
| 2 | [vb past] n't [vb infin] at the time | 20 |
|
| 3 | [vb past] n't [vb infin] [prep] the time | 20 |
|
| 4 | [vb past] n't [vb infin] at the time | 20 |
|
| 5 | [vb past] n't know [prep] the time | 10 |
|
