| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [verb] [prep] [pron] | 230 |
|
| 2 | [Wh det] could [vb infin] [verb] [prep] | 28 |
|
| 3 | [Wh det] could [verb] [prep] [pron] | 26 |
|
| 4 | [Wh det] could [vb infin] [prep] [pron] | 26 |
|
| 5 | [Wh det] could [vb infin] [verb] [pron] | 20 |
|
