| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [pron] could | 754 |
|
| 2 | [indef pn] [prep] [Wh det] [pron] | 489 |
|
| 3 | [indef pn] [prep] [pron] could | 50 |
|
| 4 | [indef pn] [Wh det] [pron] could | 16 |
|
