| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [pers pn] [vb infin] a [noun] | 152 |
|
| 2 | how could [pers pn] [vb infin] [noun] | 30 |
|
| 3 | how could [pers pn] [vb infin] a | 15 |
|
