| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] it could [vb infin] | 77 |
|
| 2 | which it could [vb infin] | 51 |
|
| 3 | what it could [vb infin] | 26 |
|
| 4 | [Wh det] it could do | 11 |
|
| 5 | [Wh det] it could have | 10 |
|
| 6 | [Wh det] it could mean | 5 |
|
