| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [vb pp] [num] [noun] | 15 |
|
| 2 | could be [verb] [num] [noun pl] | 15 |
|
| 3 | could be [verb] two [noun] | 6 |
|
| 4 | could be [verb] [num] miles | 5 |
|
| 5 | could be [verb] [num] mile | 5 |
|
