| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [pron] | 12148 |
|
| 2 | i [vb infin] [pron] | 5354 |
|
| 3 | could i [vb infin] | 729 |
|
| 4 | could i [pron] | 5 |
|
