| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [pron] could have | 384 |
|
| 2 | [coord] [Wh det] [modal v] have | 83 |
|
| 3 | [coord] [Wh det] could [verb] | 32 |
|
| 4 | [coord] [Wh det] could [vb infin] | 32 |
|
| 5 | [conj] [Wh det] could have | 9 |
|
| 6 | [coord] [Wh det] could have | 9 |
|
