| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] i [vb mod] [vb infin] | 144 |
|
| 2 | [modal v] [vb infin] i [vb mod] [vb infin] | 144 |
|
| 3 | could [vb infin] [pron] [vb mod] [vb infin] | 60 |
|
| 4 | could [verb] i [vb mod] [vb infin] | 10 |
|
| 5 | could [vb infin] i [vb mod] [verb] | 10 |
|
| 6 | could [vb infin] i [modal v] [vb infin] | 10 |
|
| 7 | could [vb infin] i [vb mod] [vb infin] | 10 |
|
