| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] could [vb infin] [pron] | 503 |
|
| 2 | could [vb infin] [subord] [pron] | 243 |
|
| 3 | [noun pl] could [vb infin] [subord] | 67 |
|
| 4 | [noun pl] [vb infin] [subord] [pron] | 67 |
|
