| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what could [pron] [vb infin] [conj] | 12 |
|
| 2 | [Wh det] could [pron] [vb infin] [conj] | 12 |
|
| 3 | [Wh det] could [pers pn] [vb infin] [conj] | 11 |
|
| 4 | [Wh det] could [pron] [vb infin] [coord] | 10 |
|
| 5 | [Wh det] could [pron] do [conj] | 9 |
|
| 6 | [Wh det] could [pron] [vb infin] but | 8 |
|
| 7 | [Wh det] could [pron] [vb infin] but | 8 |
|
