| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [not/n't] [vb infin] [modal v] [vb infin] | 15 |
|
| 2 | [vb mod] [not/n't] [verb] [modal v] [vb infin] | 15 |
|
| 3 | [modal v] [not/n't] [verb] [vb mod] [vb infin] | 15 |
|
| 4 | [modal v] not [verb] [modal v] [vb infin] | 11 |
|
| 5 | can [not/n't] [verb] [modal v] [vb infin] | 6 |
|
| 6 | can [not/n't] [verb] [modal v] [vb infin] | 5 |
|
