| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [pron] [prep] | 1811 |
|
| 2 | could [vb infin] [pron] [prep] | 1806 |
|
| 3 | [modal v] see [pron] [prep] | 598 |
|
| 4 | could see [pron] [prep] | 140 |
|
