| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [not/n't] [vb infin] [adv] when | 10 |
|
| 2 | can n't [vb infin] [adv] when | 7 |
|
| 3 | ca [not/n't] [vb infin] [adv] when | 7 |
|
