| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how could [pron] [vb infin] been | 33 |
|
| 2 | how could i [vb infin] been | 11 |
|
| 3 | how [modal v] i [vb infin] been | 11 |
|
| 4 | how could i [vb infin] [be] | 11 |
|
| 5 | [Wh adv] could i [vb infin] been | 11 |
|
| 6 | how could i [vb infin] [been] | 11 |
|
| 7 | how could i [vb infin] been | 11 |
|
| 8 | how could i [vb infin] be | 11 |
|
| 9 | how [vb mod] i [vb infin] been | 11 |
|
| 10 | [adv] could i [vb infin] been | 11 |
|
| 11 | how could i [verb] been | 11 |
|
