| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [verb] [adj] [noun sg] | 1484 |
|
| 2 | could have [verb] [adj] [noun] | 228 |
|
| 3 | could [vb infin] [verb] [adj] [noun sg] | 213 |
|
| 4 | could [verb] [verb] [adj] [noun sg] | 213 |
|
| 5 | could have [verb] [adj] [noun sg] | 154 |
|
