| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [vb pp] at [noun] | 58 |
|
| 2 | could be [verb] at [noun sg] | 31 |
|
| 3 | could be [verb] at [noun prp] | 13 |
|
| 4 | could be [verb] at [noun pl] | 10 |
|
| 5 | could be [verb] at risk | 6 |
|
| 6 | could be [verb] at [n mass] | 6 |
|
| 7 | could be [verb] at home | 6 |
|
| 8 | could be [verb] at risk | 6 |
|
| 9 | could be [verb] at home | 6 |
|
| 10 | could be put at [noun] | 5 |
|
| 11 | could be put at [noun] | 5 |
|
