| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [conj] i could [vb infin] | 320 |
|
| 2 | [adv] [conj] i could [verb] | 320 |
|
| 3 | [adv] [conj] i [modal v] have | 126 |
|
| 4 | [adv] [conj] [pron] could have | 115 |
|
| 5 | [adv] [conj] i could have | 22 |
|
| 6 | [adv] [conj] i could have | 19 |
|
