| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [adv] [vb infin] [be] | 100 |
|
| 2 | could [adv] [adv] [vb infin] [be] | 93 |
|
| 3 | [modal v] [adv] well [vb infin] [be] | 26 |
|
| 4 | could [adv] well [verb] [be] | 16 |
|
| 5 | could [adv] well [vb infin] [be] | 16 |
|
