| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he could [verb] have a | 9 |
|
| 2 | he could have have a | 9 |
|
| 3 | he could [verb] had a | 9 |
|
| 4 | he could [vb infin] have a | 9 |
|
| 5 | he could have have a | 9 |
|
