| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [verb] [prep] [art] [noun] | 181 |
|
| 2 | [modal v] have go [prep] [art] [noun] | 139 |
|
| 3 | could [vb infin] go [prep] [art] [noun] | 18 |
|
| 4 | could [verb] go [prep] [art] [noun] | 18 |
|
| 5 | could have go [prep] [art] [noun] | 14 |
|
