| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [adv] [verb] | 643 |
|
| 2 | could be [adv] [verb] | 626 |
|
| 3 | [modal v] be accurately [verb] | 34 |
|
| 4 | could be accurately [verb] | 10 |
|
| 5 | could [be] accurately [verb] | 10 |
|
