| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [modal v] have | 9793 |
|
| 2 | i could [verb] | 8183 |
|
| 3 | i could [vb infin] | 8151 |
|
| 4 | [pron] could have | 5696 |
|
| 5 | i could have | 995 |
|
