| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] i could [verb] | 193 |
|
| 2 | [det] [pron] could hear | 29 |
|
| 3 | [det] i [modal v] hear | 14 |
|
| 4 | [adj] i could hear | 8 |
|
