| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] [vb infin] [adj] [noun pl] | 1800 |
|
| 2 | could [adv] [vb infin] [adj] [noun] | 478 |
|
| 3 | could [adv] [vb infin] [adj] [noun pl] | 364 |
|
| 4 | could [adv] [verb] [adj] [noun pl] | 182 |
|
