| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they can [coord] can not [verb] | 8 |
|
| 2 | they [modal v] [coord] can not [verb] | 8 |
|
| 3 | they [vb mod] [coord] can not [verb] | 8 |
|
| 4 | they [modal v] [coord] can not [vb infin] | 8 |
|
| 5 | they can [coord] can not [verb] | 8 |
|
| 6 | they [modal v] and can not [verb] | 6 |
|
