| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] have [vb pp] [prep] [art] | 73 |
|
| 2 | could [not/n't] have [vb pp] [prep] [art] | 73 |
|
| 3 | [modal v] [not/n't] have [vb pp] at [art] | 40 |
|
| 4 | [vb mod] [not/n't] have [vb pp] at [art] | 40 |
|
| 5 | could [adv] have [vb pp] at [art] | 39 |
|
| 6 | could [not/n't] have [vb pp] at [art] | 35 |
|
| 7 | could [not/n't] have [vb pp] at [art] | 35 |
|
| 8 | could [not/n't] have [verb] at [art] | 35 |
|
| 9 | could [not/n't] [verb] [vb pp] at [art] | 35 |
|
| 10 | could [not/n't] [vb infin] [vb pp] at [art] | 35 |
|
| 11 | could [not/n't] have [vb pp] at [art] | 35 |
|
| 12 | could [not/n't] have [vb pp] at [art] | 35 |
|
