| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [pron] have [verb] [adj] | 100 |
|
| 2 | could [pron] [vb infin] [verb] [adj] | 55 |
|
| 3 | could [pron] [verb] [verb] [adj] | 55 |
|
| 4 | could [pron] have [verb] [adj] | 34 |
|
