| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [vb pp] could | 35 |
|
| 2 | [noun pl] [vb base] could | 22 |
|
| 3 | [noun pl] [v-ing] could | 7 |
|
| 4 | [noun pl] involved could | 6 |
|
| 5 | [noun pl] involve could | 6 |
|
| 6 | [noun pl] [to-vb] could | 5 |
|
