| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] and do | 9 |
|
| 2 | could say [coord] do | 8 |
|
| 3 | could [vb infin] or do | 8 |
|
| 4 | could go [coord] do | 5 |
|
