| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pron] could [verb] | 1131 |
|
| 2 | [Wh det] [pron] could [vb infin] | 1068 |
|
| 3 | [Wh det] [pron] [modal v] call | 467 |
|
| 4 | [Wh det] [pron] [vb mod] call | 467 |
|
| 5 | [pron] [pron] could call | 34 |
|
| 6 | [Wh det] [pron] could call | 21 |
|
| 7 | [Wh det] [pron] could call | 21 |
|
