| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do n't [vb infin] [pers pn] could have | 34 |
|
| 2 | do not think [pers pn] could have | 31 |
|
| 3 | do not [vb infin] i could have | 20 |
|
| 4 | do not [vb infin] it could have | 5 |
|
