| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [pron] could [vb infin] | 501 |
|
| 2 | [pron] [prep] [pron] could [vb infin] | 44 |
|
| 3 | [pron] [Wh det] [pron] could [vb infin] | 35 |
|
| 4 | [pron] [prep] [Wh det] [pron] could | 30 |
|
| 5 | [pron] [prep] [Wh det] could [vb infin] | 6 |
|
