| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] not [vb infin] [det] | 7023 |
|
| 2 | [modal v] not [vb infin] [det] | 7023 |
|
| 3 | could [adv] [vb infin] [det] | 1572 |
|
| 4 | could not [vb infin] [adj] | 1552 |
|
| 5 | could not [verb] [det] | 1123 |
|
| 6 | could not [vb infin] [det] | 1122 |
|
