| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] could [be] [vb pp] [conj] a | 8 |
|
| 2 | [noun pl] could be [verb] [conj] a | 8 |
|
| 3 | [noun pl] could [be] [verb] [conj] a | 8 |
|
| 4 | [noun pl] could [be] [verb] [coord] a | 5 |
|
