| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [verb] | 4880 |
|
| 2 | could [adv] be [verb] | 2590 |
|
| 3 | [modal v] then be [verb] | 1331 |
|
| 4 | [vb mod] then be [verb] | 1331 |
|
| 5 | could then [be] [verb] | 146 |
|
| 6 | could then be [verb] | 146 |
|
| 7 | could then be [verb] | 146 |
|
