| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] i have | 1155 |
|
| 2 | [modal v] i have | 1155 |
|
| 3 | could i [verb] | 740 |
|
| 4 | could [pron] have | 615 |
|
| 5 | could i have | 159 |
|
