| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could have [verb] [prep] [art] | 18 |
|
| 2 | [pron] could have go [prep] [art] | 13 |
|
| 3 | [pers pn] could have go [prep] [art] | 12 |
|
| 4 | they [modal v] have go [prep] [art] | 9 |
|
| 5 | they could have go [prep] [art] | 5 |
|
| 6 | they could have go [prep] [art] | 5 |
|
| 7 | they could [verb] go [prep] [art] | 5 |
|
| 8 | they could have go [prep] [art] | 5 |
|
