| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [not/n't] [verb] at [art] time | 42 |
|
| 2 | [verb] [not/n't] know at [art] [noun sg] | 21 |
|
| 3 | [verb] [not/n't] know at [art] [noun] | 21 |
|
| 4 | [verb] [not/n't] know at [art] time | 14 |
|
| 5 | [verb] [not/n't] know [prep] [art] time | 14 |
|
| 6 | [verb] [not/n't] know at [art] time | 14 |
|
| 7 | [verb] [not/n't] know [prep] [art] time | 14 |
|
| 8 | [verb] [adv] know at [art] time | 14 |
|
| 9 | [verb] [not/n't] know at [art] time | 14 |
|
