| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [adj] [verb] [conj] [verb] | 7 |
|
| 2 | could [verb] [adj] [verb] [conj] [verb] | 7 |
|
| 3 | could [verb] [adj] [verb] [coord] [verb] | 5 |
|
| 4 | could [verb] [adj] [to-vb] [conj] [verb] | 5 |
|
