| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [adv] [vb infin] | 2400 |
|
| 2 | could [adv] [vb infin] [be] | 1104 |
|
| 3 | could [adv] [adv] [be] | 575 |
|
| 4 | could [adv] [vb infin] [be] | 501 |
|
| 5 | [adv] [adv] [vb infin] [be] | 343 |
|
