| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] a [noun] [verb] | 147 |
|
| 2 | could hear a [noun] [verb] | 13 |
|
| 3 | [vb infin] hear a [noun] [verb] | 11 |
|
| 4 | could [vb infin] hear a [noun] | 9 |
|
