| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could and [vb mod] [verb] | 50 |
|
| 2 | could and [modal v] [verb] | 50 |
|
| 3 | could and [modal v] [vb infin] | 49 |
|
| 4 | could and should [verb] | 34 |
|
| 5 | could and should [verb] | 34 |
|
| 6 | could and [modal v] have | 19 |
|
| 7 | could and [modal v] have | 19 |
|
| 8 | could and would [verb] | 11 |
|
| 9 | could and would [verb] | 11 |
|
