| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [verb] could | 65 |
|
| 2 | have [verb] could | 35 |
|
| 3 | [verb] [vb pp] could | 32 |
|
| 4 | [vb past] [verb] could | 28 |
|
| 5 | [verb] [to-vb] could | 24 |
|
| 6 | had [verb] could | 18 |
|
| 7 | [vb base] [verb] could | 16 |
|
| 8 | [v-ing] [verb] could | 8 |
|
| 9 | [verb] say could | 8 |
|
| 10 | have [verb] could | 8 |
|
| 11 | [vb infin] [verb] could | 7 |
|
| 12 | [verb] [v-ing] could | 6 |
|
| 13 | [verb] to say could | 5 |
|
| 14 | have [verb] could | 5 |
|
